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Understand the Federal Information Security Management Act (FISMA). Learn key requirements, best practices, and how to achieve and maintain FISMA compliance. FISMA compliance defined: Requirements & best practices Everything You wanted to know about the Federal Information Security Management Act (FISMA) The Federal Information Security Management Act (FISMA) is a U.S. federal law that requires federal government agencies and their third-party partners to implement an information security program to protect their sensitive data. It provides a comprehensive security and risk management framework to implement effective controls for federal information systems. Introduced in 2002, FISMA is part of the E-Government Act of 2002 that’s aimed at improving the management of electronic government services and processes. Both these U.S. government regulations are implemented to uphold federal data security standards and protect sensitive data in government systems. FISMA 2002 was amended by the Federal Information Security Modernization Act of 2014 (FISMA 2014). Schedule a Demo What is FISMA compliance? FISMA compliance means adhering to a set of policies, standards, and guidelines to protect the personal or sensitive information contained in government systems. FISMA requires all government agencies and their vendors, service providers, and contractors to improve their information security controls based on these pre-defined requirements. Like FISMA, the Federal Risk and Authorization Management Program (FedRAMP) enables federal agencies and their vendors to protect government data, albeit for cloud services. FISMA is jointly overseen by the Department of Homeland Security (DHS) and the National Institute of Standards and Technology (NIST). NIST develops the FISMA standards and guidelines – including the minimum security requirements – that bolster the IT security and risk management practices of agencies and their contractors. The DHS administers these programs to help maximize federal information system security. FISMA non-compliance penalties FISMA non-compliance can result in many penalties, including reduced federal funding and censure by the U.S. Congress. Companies can also lose federal contracts and suffer damage to their reputation. Further, non-compliance indicates a poor cybersecurity infrastructure, which may result in costly cyberattacks or data breaches, which could then result in regulatory fines or legal penalties. Schedule a Demo Who must be FISMA-compliant? FISMA’s data protection rules were originally applicable only to U.S. federal agencies. While these standards are still applicable to all federal agencies without exception, they are now applicable to other organizations as well. Thus, any third-party contractor or other organization that provides services to a federal agency and handles sensitive information on behalf of the government must also comply with FISMA. Thus the list of organizations that must comply with FISMA includes: Public or private sector organizations having contractual agreements with federal agencies Public or private organizations that support a federal program or receive grants from federal agencies State agencies like Medicare and Medicaid Schedule a Demo What are the FISMA compliance requirements? The seven key requirements of FISMA compliance are: 1. Maintain an inventory of information systems All federal agencies and their contractors must maintain an updated list of their IT systems. They must also identify and track the integrations between these systems and any other systems in the network. The inventory should include systems that are not operated by or under their direct control. 2. Categorize information security risks Organizations must categorize their information and information systems in order of risk. Such categorizations can help them to focus their security efforts on high-risk areas and ensure that sensitive information is given the highest level of security. The NIST’s FIPS 199 standard provides risk categorization guidelines. It also defines a range of risk levels that organizations can assign to their information systems during risk categorization. 3. Implement security controls Since FISMA’s purpose is to protect the information in government systems, security controls that provide this protection are a mandatory requirement. Under FISMA, all government information systems must meet the minimum security requirements defined in FIPS 200. Organizations are not required to implement every single control. However, they must implement the controls that are relevant to them and their systems. They must also document the selected controls in their system security plan (SSP). NIST 800-53 (NIST special publication or SP) provides a list of suggested security controls for FISMA compliance. 4. Conduct risk assessments A risk assessment is a review of an organization’s security program to identify and assess potential risks. After identifying cyber threats and vulnerabilities, the organization should map them to the security controls that could mitigate them. Based on the likelihood and impact of a security incident, they must determine the risk of that threat. The final risk assessment includes risk calculations of all possible security events plus information about whether the organization will accept or mitigate each of these risks. NIST SP 800-30 provides guidance to conduct risk assessments for FISMA compliance. The NIST recommends identifying risks at three levels: organizational, business process, and information system. 5. Create a system security plan All federal agencies must implement an SSP to help with the implementation of security controls. They must also regularly maintain it and update it annually to ensure that they can implement the best and most up-to-date security solutions. The SSP should include information about the organization’s security policies and controls, and a timeline to introduce further controls. It can also include security best practices. The document is a major input in the agency’s (or third party’s) security certification and accreditation process. 6. Conduct annual security reviews Under FISMA, all program officers, compliance officials, and agency heads must conduct and oversee annual security reviews to confirm that the implemented security controls are sufficient and information security risks are at a minimum level. Agency officials can also accredit their information systems. By doing this, they accept responsibility for the security of these systems and are accountable for any adverse impacts of security incidents. Accreditation is part of the four-phase FISMA certification process. Its other three phases are initiation and planning, certification, and continuous monitoring. 7. Continuously monitor information systems Organizations must monitor their implemented security controls and document system changes and modifications. If they make major changes, they should also conduct an updated risk assessment. They may also need to be recertified. Schedule a Demo What are the benefits of FISMA compliance? FISMA compliance benefits both government agencies and their contractors and vendors. By following its guidelines and implementing its requirements, they can: Adopt a robust risk management-centered approach to security planning and implementation Continually assess, monitor, and optimize their security ecosystem Increase org-wide awareness about the need to secure sensitive data Improve incident response and accelerate incident and risk remediation Benefits of FISMA compliance for federal agencies FISMA compliance increases the cybersecurity focus within federal agencies. By implementing its mandated security controls, it can protect its information and information systems, and also protect the privacy of individuals and national security. In addition, by continuously monitoring their controls, they can maintain a consistently strong security posture. They can also eliminate newly-discovered vulnerabilities quickly and cost-effectively. Benefits of FISMA compliance for other organizations FISMA-compliant organizations can strengthen their security postures by implementing its security best practices. They can better protect their data and the government’s data, prevent data breaches and improve incident response planning. Furthermore, they can demonstrate to federal agencies that they have implemented FISMA’s recommended security controls, which gives them an advantage when trying to get new business from these agencies. Schedule a Demo The three levels of FISMA compliance FISMA defines three compliance levels, which refer to the possible impact of a security breach on an organization. These three impact levels are: 1. Low impact Low impact means that the loss of confidentiality, integrity, or availability is likely to have a limited adverse effect on the organization’s operations, assets, or people. For this reason, the security controls for these systems or data types need only meet the low level of FISMA compliance. 2. Moderate impact A moderate impact incident is one in which the loss of confidentiality, integrity, or availability could have serious adverse consequences for the organization’s operations, assets, or people. For example, it may result in significant financial loss to the organization or significant harm to individuals. However, it is unlikely to cause severe damage or result in the loss of life. 3. High impact The compromise of a high-impact information system could have catastrophic consequences for the organization’s operations, assets, or people. For example, a breach may prevent the organization from performing its primary functions, resulting in major financial loss. It may also cause major damage to assets or result in severe harm to individuals (e.g., loss of life or life-threatening injuries). To prevent such consequences, these systems must be protected with the strongest controls. Schedule a Demo FISMA compliance best practices Following the best practices outlined below can ease the FISMA compliance effort and enable organizations to meet all applicable FISMA requirements: Identify the information that must be protected and classify it based on its sensitivity level as it is created Create a security plan to monitor data activity and detect threats Implement automatic encryption for sensitive data Conduct regular risk assessments to identify and fix vulnerabilities and outdated policies Regularly monitor information security systems Provide cybersecurity awareness training to employees Maintain evidence of FISMA compliance, including records of system inventories, risk categorization efforts, security controls, SSPs, certifications, and accreditations Stay updated on changes to FISMA standards, new NIST guidelines, and evolving security best practices Schedule a Demo How AlgoSec can help you with FISMA compliance? Using the AlgoSec platform , you can instantly and clearly see which applications expose you to FISMA compliance violations. You can also automatically generate pre-populated, audit-ready compliance reports to reduce your audit preparation efforts and costs and enhance your audit readiness. AlgoSec will also uncover gaps in your FISMA compliance posture and proactively check every change for possible compliance violations. Schedule a Demo Select a size Everything You wanted to know about the Federal Information Security Management Act (FISMA) What is FISMA compliance? Who must be FISMA-compliant? What are the FISMA compliance requirements? What are the benefits of FISMA compliance? The three levels of FISMA compliance FISMA compliance best practices How AlgoSec can help you with FISMA compliance? Get the latest insights from the experts Use these six best practices to simplify compliance and risk mitigation with the AlgoSec platform White paper Learn how AlgoSec can help you pass PCI-DSS Audits and ensure continuous compliance Solution overview See how this customer improved compliance readiness and risk management with AlgoSec Case study Choose a better way to manage your network

Understand the network security policy management lifecycle, from creation to implementation and continuous review, ensuring optimal network protection and compliance. The network security policy management lifecycle ---- ------- Schedule a Demo Select a size ----- Get the latest insights from the experts Choose a better way to manage your network

The company received an 89 percent Willingness to Recommend score based on reviews AlgoSec Recognized with Established Vendor Designation in 2024 Gartner® Peer Insights™ Voice of the Customer for Network Automation Platforms The company received an 89 percent Willingness to Recommend score based on reviews June 11, 2024 Speak to one of our experts RIDGEFIELD PARK, NJ – June 11, 2024 – AlgoSec , a global cybersecurity leader, today announced it has been named an Established Vendor in the 2024 Gartner Peer Insights Voice of the Customer for Network Automation Platforms. The Voice of the Customer report synthesizes Gartner Peer Insights’ reviews into insights for IT decision makers. The report details that 89% of AlgoSec end-users are willing to recommend its solutions. AlgoSec received a composite rating of 4.3 based on objective reviews by validated users and customers on: Product Capabilities (4.6/5), Sales Experience (4.45), Deployment Experience (4.6/5) and Support Experience (4.5/5). “The expansion of networks from the data center to cloud and SASE architectures adds new levels of complexity that demand next-generation network security to ensure critical business applications don’t expose organizations to added risk. At the same time, orchestration and automation are vital to keep pace in a constantly evolving landscape,” said Avishai Wool , Chief Technology Officer and Co-Founder, AlgoSec. “Gartner’s Established Partner designation underscores AlgoSec’s commitment to guiding organizations on their network automation journey. Our certified framework brings together solid security policies, ongoing training, smart technology investments and collaboration between internal and external stakeholders.” Achieving IT security and compliance goals, at scale, is only possible through extensive integration options, total visibility and intelligent automation. The AlgoSec platform is purposely built to simplify and automate security policy management on-premise and in the cloud. Integrated change management automation monitors if security processes remain effective as organization’s requirements evolve, often resulting in real-time implementation of policy changes vs. days. This level of automation frees up team members and resources to focus on what matters most: ensuring the network is secure. To learn more visit: https://www.algosec.com/products/fireflow/ About the Report Gartner Peer Insights Voice of the Customer for Network Automation Platforms is a document synthesizing Gartner Peer Insights’ reviews into insights for IT decision makers. This aggregated peer perspective, along with the individual detailed reviews, is complementary to Gartner expert research and can play a key role in your buying process, as it focuses on direct peer experiences of implementing and operating a solution. In this document, only vendors with 20 or more eligible published reviews during the specified 18-month submission period are included. About AlgoSec AlgoSec, a global cybersecurity leader, empowers organizations to secure application connectivity and cloud-native applications throughout their multi-cloud and hybrid network. Trusted by more than 1,800 of the world’s leading organizations, AlgoSec’s application-centric approach enables to securely accelerate business application deployment by centrally managing application connectivity and security policies across the public clouds, private clouds, containers, and on-premises networks. Using its unique vendor-agnostic deep algorithm for intelligent change management automation, AlgoSec enables acceleration of digital transformation projects, helps prevent business application downtime and substantially reduces manual work and exposure to security risks. AlgoSec’s policy management and CNAPP platforms provide a single source for visibility into security and compliance issues within cloud-native applications as well as across the hybrid network environment, to ensure ongoing adherence to internet security standards, industry, and internal regulations. Learn how AlgoSec enables application owners, information security experts, DevSecOps and cloud security teams to deploy business applications up to 10 times faster while maintaining security at https://www.algosec.com . Gartner disclaimer GARTNER is a registered trademark and service mark, and PEER INSIGHTS is a trademark and service mark, of Gartner, Inc. and/or its affiliates in the U.S. and internationally and are used herein with permission. All rights reserved. Gartner Peer Insights content consists of the opinions of individual end users based on their own experiences with the vendors listed on the platform, should not be construed as statements of fact, nor do they represent the views of Gartner or its affiliates. Gartner does not endorse any vendor, product or service depicted in this content nor makes any warranties, expressed or implied, with respect to this content, about its accuracy or completeness, including any warranties of merchantability or fitness for a particular purpose.

One of the market’s most comprehensive annual vendor-agnostic studies found that rapid cloud expansion, distributed workloads, and AI-driven traffic patterns are driving increased demand for unified policy control and end-to-end transparency AlgoSec’s 2026 State of Network Security Report Reveals Rising Demand for Consolidation and Control One of the market’s most comprehensive annual vendor-agnostic studies found that rapid cloud expansion, distributed workloads, and AI-driven traffic patterns are driving increased demand for unified policy control and end-to-end transparency February 4, 2026 Speak to one of our experts RIDGEFIELD PARK, NJ, February 4, 2026 – Global cybersecurity leader AlgoSec has released its annual State of Network Security Report, providing a comprehensive vendor-agnostic analysis of today’s network security landscape. The report identifies a decisive shift in how organizations are responding to network evolution and hybrid architecture sprawl, with the focus shifting back towards consolidation; defined by unification, automation and control as businesses look to manage visibility of risk and resilience posture. Based on comparative year-on-year findings, AlgoSec’s research includes over 500 responses from security, network and cloud professionals across 28 countries and evaluates market leaders including AWS, Cisco, Microsoft Azure, GCP, Check Point, Palo Alto Networks, Fortinet and more. Key findings from the report include: AI-powered threats and defences go mainstream – Artificial intelligence has become both the newest threat vector and the next frontier of defence. For the first time, AlgoSec’s research asked how organizations are adjusting to the rise of AI-powered attacks. The majority (65%) have already adapted their strategies, with 23.6% making major structural changes and 40.9% implementing moderate adjustments. Cloud firewall strategies prioritize consolidation - The move toward cloud-based firewalls continues, but with a change in tone. Nearly a quarter (24%) of respondents plan to move primarily to cloud firewalls over the next two years, confirming that cloud-native controls are no longer a consideration, but a baseline expectation. Security becomes the deciding factor in cloud platform selection – The rise of AI-driven workloads, compliance requirements and cross-platform orchestration has made security the critical benchmark for platform selection, with 54.7% of organizations stating that security capabilities carry the most weight when selecting a cloud platform. SD-WAN further cements its role – As organizations expand their hybrid environments and distributed workforces, the demand for secure, high-performance connectivity has solidified SD-WAN’s role. Fortinet (31%) has become the most widely used SD-WAN solution while Cisco (30.7%) remains a close second. SASE moves from exploration to standardization – For the third year running, the share of organizations without a SASE solution has declined, down to 27.5% from 40% in 2024. This consistent decrease signals that SASE adoption is no longer exploratory, but a planned progression for most enterprises. “Compared to last year, we are now seeing a transition from experimentation to optimization,” said Eran Shiff, Chief Product Officer at AlgoSec. “After several years of rapid expansion across multi-cloud environments, AI-powered operations and hybrid architectures, organizations are entering a new phase of consolidation and control. Our survey reveals a collective recalibration, with organizations moving away from tool proliferation toward unified management, shared visibility and measurable automation.” The full report can be accessed here . About AlgoSec AlgoSec, a global cybersecurity leader, empowers organizations to securely accelerate application delivery up to 10 times faster by automating application connectivity and security policy across the hybrid network environment. With two decades of expertise securing hybrid networks, over 2200 of the world's most complex organizations trust AlgoSec to help secure their most critical workloads. AlgoSec Horizon platform utilizes advanced AI capabilities, enabling users to automatically discover and identify their business applications across multi-clouds, and remediate risks more effectively. It serves as a single source for visibility into security and compliance issues across the hybrid network environment, to ensure ongoing adherence to internet security standards, industry, and internal regulations. Additionally, organizations can leverage intelligent change automation to streamline security change processes, thus improving security and agility. Learn how AlgoSec enables application owners, information security experts, SecOps and cloud security teams to deploy business applications faster while maintaining security at www.algosec.com . MEDIA CONTACT: Megan Davis Alloy, on behalf of AlgoSec [email protected]

Explore Algosec's customer success stories to see how organizations worldwide improve security, compliance, and efficiency with our solutions. Global Transport Company Moves Firewall Changes Faster Organization Global Transport Industry Transportation Headquarters International Download case study Share Customer
success stories "Automation is definitely the way to go. We can now stay on top of the process even while we migrate our firewalls" Background A global transport and logistics company operates in nearly 100 countries and employs 50,000 people. From its 1000 offices, the company manages supply-chain solutions for thousands of customers all over the world each and every day. Found in virtually every industry, customers range from large international companies that require transportation services by sea and air to medium size business that ship mainly over the road. In addition, the company offers warehousing solutions on every continent to help customers with their logistics. Challenges Operating four major data centers on four continents, the security team’s daily tasks had become overwhelming. For the last several years, the company invested heavily in its rapidly growing IT and network security staff, but at its current size and level of activity, finding enough experienced staffers was practically impossible and too expensive to sustain. The only way forward was a network security automation solution that would: Automate many of the daily change requests across the 50+ firewalls, saving time so that IT and security staffers could work on other critical tasks Eliminate errors in firewall rules Demonstrate the ability to work with Cisco FirePower NGFW in the future The company also presented a special challenge in the form of its already-existing deployment of Cisco Bridge Virtual Interface (BVI) devices. The BVIs essentially act as Layer 2 firewalls. Since they, too, store firewall rules, they have to be included in the automation process. Solution The company brought in three leading Network Security Policy Management (NSPM) solutions to compete in a three-month proof-of-concept contest. The combination of AlgoSec Horizon Security Analyzer (AFA) and AlgoSec Global Transport (AFF) stood above the rest. AlgoSec Horizon Security Analyzer ensures security and compliance by providing visibility and analysis into complex network security policies. AlgoSec Global Transport improves security and saves security staffs’ time by automating the entire security policy change process, eliminating manual errors, and reducing risk. Results The two AlgoSec products, Horizon Security Analyzer and Global Transport went into production in mid-2018 where they have been working ever since, with the following results: Usability was outstanding—the products integrate well and are easy to learn and operate Single-pane-of-glass visibility across the network was suddenly available and useful to the network security staff The automation demonstrated the ability to slash the time required to push firewall changes and to eliminate errors The company found AlgoSec’s Tier 3 support to be impressive. Working directly with Tier 3 personnel and the ever-eager AlgoSec developers, the company’s Senior Technology Architect and other senior security analysts were able to work closely with AlgoSec to solve the BVI conundrum and implement the entire AlgoSec solution. Schedule time with one of our experts

Can Firewalls Be Hacked? Yes, Here’s 6 Vulnerabilities Like all security tools, firewalls can be hacked. That’s what happened to the... Cyber Attacks & Incident Response Can Firewalls Be Hacked? Yes, Here’s 6 Vulnerabilities Tsippi Dach 2 min read Tsippi Dach Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 12/20/23 Published Can Firewalls Be Hacked? Yes, Here’s 6 Vulnerabilities Like all security tools, firewalls can be hacked. That’s what happened to the social media platform X in January 2023, when it was still Twitter. Hackers exploited an API vulnerability that had been exposed since June the previous year. This gave them access to the platform’s security system and allowed them to leak sensitive information on millions of users. This breach occurred because the organization’s firewalls were not configured to examine API traffic with enough scrutiny. This failure in firewall protection led to the leak of more than 200 million names, email addresses, and usernames, along with other information, putting victims at risk of identity theft . Firewalls are your organization’s first line of defense against malware and data breaches. They inspect all traffic traveling into and out of your network, looking for signs of cyber attacks and blocking malicious activity when they find it. This makes them an important part of every organization’s cybersecurity strategy. Effective firewall management and configuration is vital for preventing cybercrime. Read on to find out how you can protect your organization from attacks that exploit firewall vulnerabilities you may not be aware of. Understanding the 4 Types of Firewalls The first thing every executive and IT leader should know is that there are four basic types of firewalls . Each category offers a different level of protection, with simpler solutions costing less than more advanced ones. Most organizations need to use some combination of these four firewall types to protect sensitive data effectively. Keep in mind that buying more advanced firewalls is not always the answer. Optimal firewall management usually means deploying the right type of firewall for its particular use case. Ideally, these should be implemented alongside multi-layered network security solutions that include network detection and response, endpoint security, and security information and event management (SIEM) technology. 1. Packet Filtering Firewalls These are the oldest and most basic types of firewalls. They operate at the network layer, checking individual data packets for their source IP address and destination IP. They also verify the connection protocol, as well as the source port and destination port against predefined rules. The firewall drops packets that fail to meet these standards, protecting the network from potentially harmful threats. Packet filtering firewalls are among the fastest and cheapest types of firewalls available. Since they can not inspect the contents of data packets, they offer minimal functionality. They also can’t keep track of established connections or enforce rules that rely on knowledge of network connection states. This is why they are considered stateless firewalls. 2. Stateful Inspection Firewalls These firewalls also perform packet inspection, but they ingest more information about the traffic they inspect and compare that information against a list of established connections and network states. Stateful inspection firewalls work by creating a table that contains the IP and port data for traffic sources and destinations, and dynamically check whether data packets are part of a verified active connection. This approach allows stateful inspection firewalls to deny data packets that do not belong to a verified connection. However, the process of checking data packets against the state table consumes system resources and slows down traffic. This makes stateful inspection firewalls vulnerable to Distributed Denial-of-Service (DDoS) attacks. 3. Application Layer Gateways These firewalls operate at the application layer, inspecting and managing traffic based on specific applications or protocols, providing deep packet inspection and content filtering. They are also known as proxy firewalls because they can be implemented at the application layer through a proxy device. In practice, this means that an external client trying to access your system has to send a request to the proxy firewall first. The firewall verifies the authenticity of the request and forwards it to an internal server. They can also work the other way around, providing internal users with access to external resources (like public web pages) without exposing the identity or location of the internal device used. 4. Next-Generation Firewalls (NGFW) Next-generation firewalls combine traditional firewall functions with advanced features such as intrusion prevention, antivirus, and application awareness . They contextualize data packet flows and enrich them with additional data, providing comprehensive security against a wide range of threats. Instead of relying exclusively on IP addresses and port information, NGFWs can perform identity-based monitoring of individual users, applications, and assets. For example, a properly configured NGFW can follow a single user’s network traffic across multiple devices and operating systems, providing an activity timeline even if the user switches between a desktop computer running Microsoft Windows and an Amazon AWS instance controlling routers and iOT devices. How Do These Firewalls Function? Each type of firewall has a unique set of functions that serve to improve the organization’s security posture and prevent hackers from carrying out malicious cyber attacks. Optimizing your firewall fleet means deploying the right type of solution for each particular use case throughout your network. Some of the most valuable functions that firewalls perform include: Traffic Control They regulate incoming and outgoing traffic, ensuring that only legitimate and authorized data flows through the network. This is especially helpful in cases where large volumes of automated traffic can slow down routine operations and disrupt operations. For example, many modern firewalls include rules designed to deny bot traffic. Some non-human traffic is harmless, like the search engine crawlers that determine your website’s ranking against certain keyword searches. However, the vast majority of bot traffic is either unnecessary or malicious. Firewalls can help you keep your infrastructure costs down by filtering out connection attempts from automated sources you don’t trust. Protection Against Cyber Threats Firewalls act as a shield against various cyber threats, including phishing attacks, malware and ransomware attacks . Since they are your first line of defense, any malicious activity that targets your organization will have to bypass your firewall first. Hackers know this, which is why they spend a great deal of time and effort finding ways to bypass firewall protection. They can do this by exploiting technical vulnerabilities in your firewall devices or by hiding their activities in legitimate traffic. For example, many firewalls do not inspect authenticated connections from trusted users. If cybercriminals learn your login credentials and use your authenticated account to conduct an attack, your firewalls may not notice the malicious activity at all. Network Segmentation By defining access rules, firewalls can segment networks into zones with varying levels of trust, limiting lateral movement for attackers. This effectively isolates cybercriminals into the zone they originally infiltrated, and increases the chance they make a mistake and reveal themselves trying to access additional assets throughout your network. Network segmentation is an important aspect of the Zero Trust framework. Firewalls can help reinforce the Zero Trust approach by inspecting traffic traveling between internal networks and dropping connections that fail to authenticate themselves. Security Policy Enforcement Firewalls enforce security policies, ensuring that organizations comply with their security standards and regulatory requirements. Security frameworks like NIST , ISO 27001/27002 , and CIS specify policies and controls that organizations need to implement in order to achieve compliance. Many of these frameworks stipulate firewall controls and features that require organizations to invest in optimizing their deployments. They also include foundational and organizational controls where firewalls play a supporting role, contributing to a stronger multi-layered cybersecurity strategy. Intrusion Detection and Prevention Advanced firewalls include intrusion detection and prevention capabilities, which can identify and block suspicious activities in real-time. This allows security teams to automate their response to some of the high-volume security events that would otherwise drag down performance . Automatically detecting and blocking known exploits frees IT staff to spend more time on high-impact strategic work that can boost the organization’s security posture. Logging and Reporting Firewalls generate logs and reports that assist in security analysis, incident response, and compliance reporting. These logs provide in-depth data on who accessed the organization’s IT assets, and when the connection occurred. They enable security teams to conduct forensic investigations into security incidents, driving security performance and generating valuable insights into the organization’s real-world security risk profile. Organizations that want to implement SIEM technology must also connect their firewall devices to the platform and configure them to send log data to their SIEM for centralized analysis. This gives security teams visibility into the entire organization’s attack surface and enables them to adopt a Zero Trust approach to managing log traffic. Common Vulnerabilities & Weaknesses Firewalls Share Firewalls are crucial for network security, but they are not immune to vulnerabilities. Common weaknesses most firewall solutions share include: Zero-day vulnerabilities These are vulnerabilities in firewall software or hardware that are unknown to the vendor or the general public. Attackers can exploit them before patches or updates are available, making zero-day attacks highly effective. Highly advanced NGFW solutions can protect against zero-day attacks by inspecting behavioral data and using AI-enriched analysis to detect unknown threats. Backdoors Backdoors are secret entry points left by developers or attackers within a firewall’s code. These hidden access points can be exploited to bypass security measures. Security teams must continuously verify their firewall configurations to identify the signs of backdoor attacks. Robust and effective change management solutions help prevent backdoors from remaining hidden. Header manipulation Attackers may manipulate packet headers to trick firewalls into allowing unauthorized traffic or obscuring their malicious intent. There are multiple ways to manipulate the “Host” header in HTTP traffic to execute attacks. Security teams need to configure their firewalls and servers to validate incoming HTTP traffic and limit exposure to header vulnerabilities. How Cyber Criminals Exploit These Vulnerabilities Unauthorized Access Exploiting a vulnerability can allow cybercriminals to penetrate a network firewall, gaining access to sensitive data, proprietary information, or critical systems. Once hackers gain unauthorized access to a network asset, only a well-segmented network operating on Zero Trust principles can reliably force them to reveal themselves. Otherwise, they will probably remain hidden until they launch an active attack. Data Breaches Once inside your network, attackers may exfiltrate sensitive information, including customer data, intellectual property, and financial records (like credit cards), leading to data breaches. These complex security incidents can lead to major business disruptions and reputational damage, as well as enormous recovery costs. Malware Distribution Attackers may use compromised firewalls to distribute malware, ransomware, or malicious payloads to other devices within the network. This type of attack may focus on exploiting your systems and network assets, or it may target networks adjacent to your own – like your third-party vendors, affiliate partners, or customers. Denial of Service (DDoS) Exploited firewalls can be used in DDoS attacks, potentially disrupting network services and rendering them unavailable to users. This leads to expensive downtime and reputational damage. Some hackers try to extort their victims directly, demanding organizations pay money to stop the attack. 6 Techniques Used to Bypass Firewalls 1. Malware and Payload Delivery Attackers use malicious software and payloads to exploit firewall vulnerabilities, allowing them to infiltrate networks or systems undetected. This often occurs due to unpatched security vulnerabilities in popular firewall operating systems. For example, in June 2023 Fortinet addressed a critical-severity FortiOS vulnerability with a security patch. One month later in July, there were still 300,000 Fortinet firewalls still using the unpatched operating system. 2. Phishing Attacks Phishing involves tricking individuals into divulging sensitive information or executing malicious actions. Attackers use deceptive emails or websites that may bypass firewall filters. If they gain access to privileged user account credentials, they may be able to bypass firewall policies entirely, or even reconfigure firewalls themselves. 3. Social Engineering Tactics Cybercriminals manipulate human psychology to deceive individuals into disclosing confidential information, effectively bypassing technical security measures like firewalls. This is typically done through social media, email, or by telephone. Attackers may impersonate authority figures both inside and outside the organization and demand access to sensitive assets without going through the appropriate security checks. 4. Deep Packet Inspection Evasion Attackers employ techniques to disguise malicious traffic, making it appear benign to firewalls using deep packet inspection, allowing it to pass through undetected. Some open-source tools like SymTCP can achieve this by running symbolic executions on the server’s TCP implementation, scanning the resulting execution paths, and sending malicious data through any handling discrepancies identified. 5. VPNs and Remote Access Attackers may use Virtual Private Networks (VPNs) and remote access methods to circumvent firewall restrictions and gain unauthorized entry into networks. This is particularly easy in cases where simple geo restrictions block traffic from IP addresses associated with certain countries or regions. Attackers may also use more sophisticated versions of this technique to access exposed services that don’t require authentication, like certain containerized servers . 6. Intrusion Prevention Systems (IPS) Bypass Sophisticated attackers attempt to evade IPS systems by crafting traffic patterns or attacks that go undetected, enabling them to compromise network security. For example, they may use technologies to decode remote access tool executable files hidden inside certificate files, allowing them to reassemble the malicious file after it passes through the IPS. Protecting Against Firewall Vulnerabilities Multi-factor Authentication (MFA) MFA adds an extra layer of security by requiring users to provide multiple forms of identification, such as a password and a one-time code sent to their mobile device, before they gain access. This prevents attackers from accessing sensitive network assets immediately after stealing privileged login credentials. Knowing an account holder’s password and username is not enough. Two-factor Authentication (2FA) 2FA is a subset of MFA that involves using two authentication factors, typically something the user knows (password) and something the user has (a mobile device or security token), to verify identity and enhance firewall security. Other versions use biometrics like fingerprint scanning to authenticate the user. Intrusion Prevention Systems (IPS) IPS solutions work alongside firewalls to actively monitor network traffic for suspicious activity and known attack patterns, helping to block or mitigate threats before they can breach the network. These systems significantly reduce the amount of manual effort that goes into detecting and blocking known malicious attack techniques. Web Application Firewalls (WAF) WAFs are specialized firewalls designed to protect web applications from a wide range of threats, including SQL injection, cross-site scripting (XSS), and other web-based attacks. Since these firewalls focus specifically on HTTP traffic, they are a type of application level gateway designed specifically for web applications that interact with users on the public internet. Antivirus Software and Anti-malware Tools Deploying up-to-date antivirus and anti-malware software on endpoints, servers, and Wi-Fi network routers helps detect and remove malicious software, reducing the risk of firewall compromise. In order to work effectively, these tools must be configured to detect and mitigate the latest threats alongside the organization’s other security tools and firewalls. Automated solutions can help terminate unauthorized processes before attackers get a chance to deliver malicious payloads. Regular Updates and Patch Management Keeping firewalls and all associated software up-to-date with the latest security patches and firmware updates is essential for addressing known vulnerabilities and ensuring optimal security. Security teams should know when configuration changes are taking place, and be equipped to respond quickly when unauthorized changes take place. Implementing a comprehensive visibility and change management platform like AlgoSec makes this possible. With AlgoSec, you can simulate the effects of network configuration changes and proactively defend against sophisticated threats before attackers have a chance to strike. Monitoring Network Traffic for Anomalies Continuous monitoring of network traffic helps identify unusual patterns or behaviors that may indicate a security incident. Anomalies can trigger alerts for further investigation and response. Network detection and response solutions grant visibility into network activities that would otherwise go unnoticed, potentially giving security personnel early warning when unannounced changes or suspicious behaviors take place. Streamline Your Firewall Security With AlgoSec Organizations continue to face increasingly sophisticated cyber threats, including attacks that capitalize on misconfigured firewalls – or manipulate firewall configurations directly. Firewall management software has become a valuable tool for maintaining a robust network security posture and ensuring regulatory compliance. AlgoSec plays a vital role enhancing firewall security by automating policy analysis, optimizing rule sets, streamlining change management, and providing real-time monitoring and visibility. Find out how to make the most of your firewall deployment and detect unauthorized changes to firewall configurations with our help. Schedule a demo Related Articles Q1 at AlgoSec: What innovations and milestones defined our start to 2026? AlgoSec Reviews Mar 19, 2023 · 2 min read 2025 in review: What innovations and milestones defined AlgoSec’s transformative year in 2025? AlgoSec Reviews Mar 19, 2023 · 2 min read Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... 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Behind every important business process is a solid network infrastructure that lets us access all of these services. But for an efficient... Application Connectivity Management Understanding network lifecycle management Tsippi Dach 2 min read Tsippi Dach Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 7/4/23 Published Behind every important business process is a solid network infrastructure that lets us access all of these services. But for an efficient and available network, you need an optimization framework to maintain a strong network lifecycle. It can be carried out as a lifecycle process to ensure continuous monitoring, management, automation, and improvement. Keep in mind, there are many solutions to help you with connectivity management . Regardless of the tools and techniques you follow, there needs to be a proper lifecycle plan for you to be able to manage your network efficiently. Network lifecycle management directs you on reconfiguring and adapting your data center per your growing requirements. The basic phases of a network lifecycle In the simplest terms, the basic phases of a network lifecycle are Plan, Build, and Manage. These phases can also be called Design, Implement, and Operate (DIO). Now, in every single instance where you want to change your network, you repeat this process of designing, implementing, and managing the changes. And every subtask that is carried out as part of the network management can also follow the same lifecycle phases for a more streamlined process . Besides the simpler plan, build, and manage phases, certain network frameworks also provide additional phases depending on the services and strategies involved. ITIL framework ITIL stands for Information Technology Infrastructure Library, which is an IT management framework. ITIL put forth a similar lifecycle process focusing on the network services aspect. The phases, as per ITIL, are: Service strategy Service design Service transition Service operations Continual service improvement PPDIOO framework PPDIOO is a network lifecycle model proposed by Cisco, a learning network services provider. This framework adds to the regular DIO framework with several subtasks, as explained below. Plan Prepare The overall organizational requirements, network strategy, high-level conceptual architecture, technology identification, and financial planning are all carried out in this phase. Plan Planning involves identifying goal-based network requirements, user needs, assessment of any existing network, gap analysis, and more. The tasks are to analyze if the existing infrastructure or operating environment can support the proposed network solution. The project plan is then drafted to align with the project goals regarding cost, resources, and scope. Design Network design experts develop a detailed, comprehensive network design specification depending on the findings and project specs derived from previous phases. Build The build phase is further divided into individual implementation tasks as part of the network implementation activities. This can include procurement, integrating devices, and more. The actual network solution is built as per the design, focusing on ensuring service availability and security. Operate The operational phase involves network maintenance, where the design’s appropriateness is tested. The network is monitored and managed to maintain high availability and performance while optimizing operational costs. Optimize The operational phase gives important data that can be utilized to optimize the performance of the network implementation further. This phase acts as a proactive mechanism to identify and solve any flaws or vulnerabilities within the network. It may involve network redesign and thus start a new cycle as well. Why develop a lifecycle optimization plan? A lifecycle approach to network management has various use cases. It provides an organized process, making it more cost-effective and less disruptive to existing services. Reduced total network ownership cost Early on, planning and identifying the exact network requirements and new technologies allow you to carry out a successful implementation that aligns with your budget constraints. Since there is no guesswork with a proper plan, you can avoid redesigns and rework, thus reducing any cost overheads. High network availability Downtimes are a curse to business goals. Each second that goes by without access to the network can be bleeding money. Following a proper network lifecycle management model allows you to plan your implementation with less to no disruptions in availability. It also helps you update your processes and devices before they get into an outage issue. Proactive monitoring and management, as proposed by lifecycle management, goes a long way in avoiding unexpected downtimes. This also saves time with telecom troubleshooting. Better business agility Businesses that adapt better thrive better. Network lifecycle management allows you to take the necessary action most cost-effectively in case of any quick economic changes. It helps you prepare your systems and operations to accommodate the new network changes before they are implemented. It also provides a better continuous improvement framework to keep your systems up to date and adds to cybersecurity. Improved speed of access Access to the network, the faster it is, the better your productivity can be. Proper lifecycle management can improve service delivery efficiency and resolve issues without affecting business continuity. The key steps to network lifecycle management Let us guide you through the various phases of network lifecycle management in a step-by-step approach. Prepare Step 1: Identify your business requirements Establish your goals, gather all your business requirements, and arrive at the immediate requirements to be carried out. Step 2: Create a high-level architecture design Create the first draft of your network design. This can be a conceptual model of how the solution will work and need not be as detailed as the final design would be. Step 3: Establish the budget Do the financial planning for the project detailing the possible challenges, budget, and expected profits/outcomes from the project. Plan Step 4: Evaluate your current system This step is necessary to properly formulate an implementation plan that will be the least disruptive to your existing services. Gather all relevant details, such as the hardware and software apps you use in your network. Measure the performance and other attributes and assess them against your goal specifics. Step 5: Conduct Gap Analysis Measure the current system’s performance levels and compare them with the expected outcomes that you want to achieve. Step 6: Create your implementation plan With the collected information, you should be able to draft the implementation plan for your network solution. This plan should essentially contain the various tasks that must be carried out, along with information on milestones, responsibilities, resources, and financing options. Design Step 7: Create a detailed network design Expand on your initial high-level concept design to create a comprehensive and detailed network design. It should have all the relevant information required to implement your network solution. Take care to include all necessary considerations regarding your network’s availability, scalability, performance, security, and reliability. Ensure the final design is validated by a proper approval process before being okayed for implementation. Implementation Step 8: Create an implementation plan The Implementation phase must have a detailed plan listing all the tasks involved, the steps to rollback, time estimations, implementation guidelines, and all the other details on how to implement the network design. Step 9: Testing Before implementing the design in the production environment, starting with a lab setting is a good idea. Implement in a lab testing environment to check for any errors and how feasible it is to implement the design. Improve the design depending on the results of this step. Step 10: Pilot implementation Implement in an iterative process starting with smaller deployments. Start with pilot implementations, test the results, and if all goes well, you can move towards wide-scale implementation. Step 11: Full deployment When your pilot implementation has been successful, you can move toward a full-scale deployment of network operations. Operate Step 12: Measure and monitor When you move to the Operational phase, the major tasks will be monitoring and management. This is probably the longest phase, where you take care of the day-to-day operational activities such as: Health maintenance Fault detection Proactive monitoring Capacity planning Minor updates (MACs – Moves, Adds, and Changes) Optimize Step 13: Optimize the network design based on the collected metrics. This phase essentially kicks off another network cycle with its own planning, designing, workflows, and implementation. Integrate network lifecycle with your business processes First, you must understand the importance of network lifecycle management and how it impacts your business processes and IT assets. Understand how your business uses its network infrastructure and how a new feature could add value. For instance, if your employees work remotely, you may have to update your infrastructure and services to allow real-time remote access and support personal network devices. Any update or change to your network should follow proper network lifecycle management to ensure efficient network access and availability. Hence, it must be incorporated into the company’s IT infrastructure management process. As a standard, many companies follow a three-year network life cycle model where one-third of the network infrastructure is upgraded to keep up with the growing network demands and telecommunications technology updates. Automate network lifecycle management with AlgoSec AlgoSec’s unique approach can automate the entire security policy management lifecycle to ensure continuous, secure connectivity for your business applications. The approach starts with auto discovering application connectivity requirements, and then intelligently – and automatically – guides you through the process of planning changes and assessing the risks, implementing those changes and maintaining the policy, and finally decommissioning firewall rules when the application is no longer in use. Schedule a demo Related Articles Q1 at AlgoSec: What innovations and milestones defined our start to 2026? AlgoSec Reviews Mar 19, 2023 · 2 min read 2025 in review: What innovations and milestones defined AlgoSec’s transformative year in 2025? AlgoSec Reviews Mar 19, 2023 · 2 min read Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Schedule a call

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Modernize your network Cisco Nexus and Cisco ACI with AlgoSec Download PDF Download PDF Add a Title Add a Title Add a Title Schedule time with one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Problems with firewalls can be quite disastrous to your operations. When firewall rules are not set properly, you might deny all... Firewall Change Management Firewall troubleshooting steps & solutions to common issues Tsippi Dach 2 min read Tsippi Dach Short bio about author here Lorem ipsum dolor sit amet consectetur. Vitae donec tincidunt elementum quam laoreet duis sit enim. Duis mattis velit sit leo diam. Tags Share this article 8/10/23 Published Problems with firewalls can be quite disastrous to your operations. When firewall rules are not set properly, you might deny all requests, even valid ones, or allow access to unauthorized sources. There needs to be a systematic way to troubleshoot your firewall issues, and you need to have a proper plan. You should consider security standards, hardware/software compatibility, security policy planning , and access level specifications. It is recommended to have an ACL (access control list) to determine who has access to what. Let us give you a brief overview of firewall troubleshooting best practices and steps to follow. Common firewall problems With the many benefits that firewalls bring, they might also pop out some errors and issues now and then. You need to be aware of the common issues, failures, and error codes to properly assess an error condition to ensure the smooth working of your firewalls. Misconfiguration errors A report by Gartner Research says that misconfiguration causes about 95% of all firewall breaches. A simple logical flaw in a firewall rule can open up vulnerabilities, leading to serious security breaches. Before playing with your firewall settings, you must set up proper access control settings and understand the security policy specifications. You must remember that misconfiguration errors in CLI can lead to hefty fines for non-compliance, data breaches , and unnecessary downtimes. All these can cause heavy monetary damages; hence, you should take extra care to configure your firewall rules and settings properly. Here are some common firewall misconfigurations: Allowing ICMP and making the firewall available for ping requests Providing unnecessary services on the firewall Allowing unused TCP/UDP ports The firewall is set to return a ‘deny’ response instead of a ‘drop’ for blocked ports. IP address misconfigurations that can allow TCP pinging of internal hosts from external devices. Trusting DNS and IP addresses that are not properly checked and source verified. Check out AlgoSec’s firewall configuration guide for best practices. Hardware issues Hardware bottlenecks and device misconfigurations can easily lead to firewall failures. Sometimes, running a firewall 24/7 can overload your hardware and lead to a lowered network performance of your entire system. You should look into the performance issues and optimize firewall functionalities or upgrade your hardware accordingly. Software vulnerabilities Any known vulnerability with your firewall software must be dealt with immediately. Hackers can exploit software vulnerabilities easily to gain backdoor entry into your network. So, stay current with all the patches and updates your software vendors provide. Types of firewall issues Most firewall issues can be classified as either connectivity or performance issues. Here are some tools you can use in each of these cases: Connectivity Issues Some loss of access to a network resource or unavailability usually characterizes these issues. You can use network connectivity tools like NetStat to monitor and analyze the inbound TCP/UDP packets. Both these tools have a wide range of sub-commands and tools that help you trace IP network traffic and control the traffic as per your requirements. Firewall Performance Issues As discussed earlier, performance issues can cause a wide range of issues, such as unplanned downtimes and firewall failures, leading to security breaches and slow network performance. Some of the ways you can rectify it include: Load balancing by regulating the outbound network traffic by limiting the internal server errors and streamlining the network traffic. Filtering the incoming network traffic with the help of Standard Access Control List filters. Simplifying firewall rules to reduce the load on the firewall applications. You can remove unused rules and break down complex rules to improve performance. Firewall troubleshooting checklist steps Step 1. Audit your hardware & software Create a firewall troubleshooting checklist to check your firewall rules, software vulnerabilities, hardware settings, and more based on your operating system. This should include all the items you should cover as part of your security policy and network assessment. With Algosec’s policy management , you can ensure that your security policy is complete, comprehensive and does not miss out on anything important. Step 2. Pinpoint the Issue Check what the exact issue is. Generally, a firewall issue can arise from any of the three conditions: Access from external networks/devices to protected resources is not functioning properly Access from the protected network/resources to unprotected resources is not functioning properly. Access to the firewall is not functioning properly. Step 3. Determine the traffic flow Once you have ascertained the exact access issue, you should check whether the issue is raised when traffic is going to the firewall or through the firewall. Once you have narrowed down this issue, you can test the connectivity accordingly and determine the underlying cause. Check for any recent updates and try to roll back if that can solve the issue. Go through your firewall permissions and logs for any error messages or warnings. Review your firewall rules and configurations and adjust them for proper working. Depending upon your firewall installation, you can make a checklist of items. Here is a simple guide you can follow to conduct routine maintenance troubleshooting . Monitor the network, test it out, and repeat the process until you reach a solution. Firewall troubleshooting best practices Here are some proven firewall troubleshooting tips. For more in-depth information, check out our Network Security FAQs page. Monitor and test Regular auditing and testing of your Microsoft firewall can help you catch vulnerabilities early and ensure good performance throughout the year. You can use expert-assisted penetration testing to get a good idea of the efficacy of your firewalls. Also be sure to check out the auditing services from Algosec , especially for your PCI security compliance . Deal with insider threats While a Mac or Windows firewall can help you block external threats to an extent, it can be powerless regarding insider attacks. Make sure you enforce strong security controls to avoid any such conditions. Your security policies must be crafted well to avoid any room for such conditions, and your access level specifications should also be well-defined. Device connections Make sure to pay attention to the other modes of attack that can happen besides a network access attempt. If an infected device such as a USB, router, hard drive, or laptop is directly connected to your system, your network firewall can do little to prevent the attack. So, you should put the necessary device restrictions in your privacy statement and the firewall rules. Review and Improve Update your firewall rules and security policies with regular audits and tests. Here are some more tips you can follow to improve your firewall security: Optimize your firewall ruleset to allow only necessary access Use unique user IP instead of a root ID to launch the firewall services Make use of a protected remote Syslog server and keep it safe from unauthorized access Analyze your firewall logs regularly to identify and detect any suspicious activity. You can use tools like Algosec Firewall Analyzer and expert help to analyze your firewall as well. Disable FTP connections by default Setup strict controls on how and which users can modify firewall configurations. Include both source and destination IP addresses and the ports in your firewall rules. Document all the updates and changes made to your firewall policies and rules. In the case of physical firewall implementations, restrict the physical access as well. Use NAT (network address translation) to map multiple private addresses to a public IP address before transmitting the information online. How does a firewall actually work? A Windows firewall is a network security mechanism that allows you to restrict incoming network traffic to your systems. It can be implemented as a hardware, software, or cloud-based security solution . It acts as a barrier stopping unauthorized network access requests from reaching your internal network and thus minimizing any attempt at hacking or breach of confidential data . Based on the type of implementation and the systems it is protecting, firewalls can be classified into several different types. Some of the common types of firewalls are: Packet filtering – Based on the filter standards, a small amount of incoming data is analyzed and subjected to restriction on distribution across the network. Proxy service – An application layer service that acts as an intermediary between the actual servers to block out unauthorized access requests. Stateful inspection – A dynamic packet filtering mechanism that filters out the network packets. Next-Generation Firewall (NGFW) – A combination of deep packet inspection and application level inspection to block out unauthorized access into the network. Firewalls are essential to network security at all endpoints, whether personal computers or full-scale enterprise data centers. They allow you to set up strong security controls to prevent a wide range of cyberattacks and help you gain valuable data. Firewalls can help you detect suspicious activities and prevent intrusive attacks at the earliest. They can also help you regulate your incoming and outgoing traffic routing, helping you implement zero-trust security policies and stay compliant with security and data standards. Schedule a demo Related Articles Q1 at AlgoSec: What innovations and milestones defined our start to 2026? AlgoSec Reviews Mar 19, 2023 · 2 min read 2025 in review: What innovations and milestones defined AlgoSec’s transformative year in 2025? AlgoSec Reviews Mar 19, 2023 · 2 min read Navigating Compliance in the Cloud AlgoSec Cloud Mar 19, 2023 · 2 min read Speak to one of our experts Speak to one of our experts Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Schedule a call