Kyle Wickert explains how organizations can balance the need to modernize their networks without compromising security For businesses of... Digital Transformation Modernizing your infrastructure without neglecting security Kyle Wickert 2 min read Kyle Wickert 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 8/19/21 Published Kyle Wickert explains how organizations can balance the need to modernize their networks without compromising security For businesses of all shapes and sizes, the inherent value in moving enterprise applications into the cloud is beyond question. The ability to control computing capability at a more granular level can lead to significant cost savings, not to mention the speed at which new applications can be provisioned. Having a modern cloud-based infrastructure makes businesses more agile, allowing them to capitalize on market forces and other new opportunities much quicker than if they depended on on-premises, monolithic architecture alone. However, there is a very real risk that during the goldrush to modernized infrastructures, particularly during the pandemic when the pressure to migrate was accelerated rapidly, businesses might be overlooking the potential blind spot that threatens all businesses indiscriminately, and that is security. One of the biggest challenges for business leaders over the past decade has been managing the delicate balance between infrastructure upgrades and security. Our recent survey found that half of organizations who took part now run over 41% of workloads in the public cloud, and 11% reported a cloud security incident in the last twelve months. If businesses are to succeed and thrive in 2021 and beyond, they must learn how to walk this tightrope effectively. Let’s consider the highs and lows of modernizing legacy infrastructures, and the ways to make it a more productive experience. What are the risks in moving to the cloud? With cloud migration comes risk. Businesses that move into the cloud actually stand to lose a great deal if the process isn’t managed effectively. Moreover, they have some important decisions to make in terms of how they handle application migration. Do they simply move their applications and data into the cloud as they are as a ‘lift and shift’, or do they seek to take a more cloud-native approach and rebuild applications in the cloud to take full advantage of its myriad benefits? Once a business has started this move toward the cloud, it’s very difficult to rewind the process and unpick mistakes that may have been made, so planning really is critical. Then there’s the issue of attack surface area. Legacy on-premises applications might not be the leanest or most efficient, but they are relatively secure by default due to their limited exposure to external environments. Moving said applications onto the cloud has countless benefits to agility, efficiency, and cost, but it also increases the attack surface area for potential hackers. In other words, it gives bots and bad actors a larger target to hit. One of the many traps that businesses fall into is thinking that just because an application is in the cloud, it must be automatically secure. In fact, the reverse is true unless proper due diligence is paid to security during the migration process. The benefits of an app-centric approach One of the ways in which AlgoSec helps its customer master security in the cloud is by approaching it from an app-centric perspective. By understanding how a business uses its applications, including its connectivity paths through the cloud, data centers and SDN fabrics, we can build an application model that generates actionable insights such as the ability to create policy-based risks instead of leaning squarely on firewall controls. This is of particular importance when moving legacy applications onto the cloud. The inherent challenge here is that a business is typically taking a vulnerable application and making it even more vulnerable by moving it off-premise, relying solely on the cloud infrastructure to secure it. To address this, businesses should rank applications in order of sensitivity and vulnerability. In doing so, they may find some quick wins in terms of moving modern applications into the cloud that have less sensitive data. Once these short-term gains are dealt with, NetSecOps can focus on the legacy applications that contain more sensitive data which may require more diligence, time, and focus to move or rebuild securely. Migrating applications to the cloud is no easy feat and it can be a complex process even for the most technically minded NetSecOps. Automation takes a large proportion of the hard work away and enables teams to manage cloud environments efficiently while orchestrating changes across an array of security controls. It brings speed and accuracy to managing security changes and accelerates audit preparation for continuous compliance. Automation also helps organizations overcome skills gaps and staffing limitations. We are likely to see conflict between modernization and security for some time. On one hand, we want to remove the constraints of on-premises infrastructure as quickly as possible to leverage the endless possibilities of cloud. On the other hand, we have to safeguard against the opportunistic hackers waiting on the fray for the perfect time to strike. By following the guidelines set out in front of them, businesses can modernize without compromise. To learn more about migrating enterprise apps into the cloud without compromising on security, and how a DevSecOps approach could help your business modernize safely, watch our recent Bright TALK webinar here . Alternatively, get in touch or book a free demo . 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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Learn how governed cloud security policy change automation connects requests, risk checks, approvals, implementation, validation, and audit evidence. What is cloud security policy change automation? ---- ------- Schedule a Demo Select a size ----- Get the latest insights from the experts Choose a better way to manage your network

Learn from expert-crafted firewall ruleset examples and best practices. Optimize your security posture with actionable guidance and improve your firewall configurations. Firewall ruleset examples & policy best practices Securing your network: guide to firewall rules examples Cyberattacks continue to rise globally as malicious actors tirelessly develop sophisticated tools and techniques to break through networks and security systems. With the digitalization of operations today and the increasing adoption of remote working, crucial business activities such as communication, data storage, and data transmission are now primarily done digitally. While this brings numerous advantages – allowing easy usability and scalability, enhancing collaboration, and reducing the risks of data loss – businesses have to deal with various security risks, such as data breaches and cyberattacks from hackers. Organizations must provide adequate network security to keep sensitive data safe and ensure their network is usable, trustworthy, and optimized for maximum productivity across all channels. Schedule a Demo Firewalls and your network Your network and systems (software and hardware) comprise the IT infrastructure through which you operate and manage your enterprise’s IT services. Every IT system regularly receives and transmits internet traffic, and businesses must ensure that only trusted and authorized traffic penetrates their network to maintain security. All unwanted traffic must be prevented from accessing your operating system as it poses a huge risk to network security. Malicious actors attempting to penetrate your system often send virus-carrying inbound traffic to your network. However, with an effective firewall, you can filter all traffic and block unwanted and harmful traffic from penetrating your network. A firewall serves as a barrier between computers, networks, and other systems in your IT landscape, preventing unauthorized traffic from penetrating. Schedule a Demo What are firewall rules? The firewall is your first line of defense in network security against hackers, malware, and other threats. Firewall rules refer to access control mechanisms that stipulate how a firewall device should handle incoming and outgoing traffic in your network. They are instructions given to firewalls to help them know when to block or allow communication in your network. These instructions include destination or source IP addresses, protocols, port numbers, and services. A firewall ruleset is formed from a set of rules and it defines a unit of execution and sharing for the rules. Firewall rulesets typically include: A source address A source port A destination address A destination port A decision on whether to block or permit network traffic meeting those address and port criteria Schedule a Demo What are the most common firewall ruleset examples? There are thousands of rulesets that can be used to control how a firewall deals with network traffic. Some firewall rules are more common than others, as they tend to be fundamental when building a secure network. Here are some examples of firewall rules for common use cases: Enable internet access for only one computer in the local network and block access for all others This rule gives only one computer in the local network access to the internet, and blocks all others from accessing the internet. This example requires obtaining the IP address of the computer being granted access (i.e., source IP address) and the TCP protocol type. Two rules will be created: a Permit rule and a Deny rule. The permit rule allows the chosen computer the required access, while the deny rule blocks all other computers in the local network from internet access. Prevent direct access from the public network to the firewall This rule blocks access to your firewall from any public network, to protect it from hackers who can modify or delete your rules if they access your firewall directly. Once hackers manipulate your rules, unwanted traffic will penetrate your network, leading to data breaches or an interruption in operation. A Deny rule for any attempt to access the firewall from public networks will be created and enabled. Block internet access for only one computer in the local network This rule comes in handy if you do not want a specific computer in the local network to access the internet. You will need to create a Deny rule in which you set the IP address of the computer you wish to block from the internet, and the TCP protocol type. Block access to a specific website from a local network In this scenario we want to configure our firewall to deny access to a particular website from a local network. We first obtain the IP address or addresses of the website we wish to deny access to, and then create a Deny rule. One way to obtain a website’s IP address is by running the special command ‘nslookup ’ in your operating system’s command line (Windows, Linux, or others). Since websites can run on HTTP and HTTPS, we must create a Deny rule for each protocol type and indicate the destination IP address(es). Thus, the local network will be unable to access both the HTTP and HTTPS versions of the website. Allow a particular LAN computer to access only one specific website This example gives a local computer access to only one specified website. We obtain the IP address of the destination website and the source IP address (of the local computer). We create a Permit rule for the source IP address and the destination website, and a Deny rule for the source IP address and other websites, taking the TCP protocol types into account. Allow internet access to and from the local network using specific protocols (services) only This example allows your LAN computer to access the internet using specific protocols, such as SMTP, FTP, IPv6, SSH, IPv4, POP3, DNS, and IMAP; and blocks all other traffic Here we first create an “Allow” rule for the “Home segment,” where we use the value “Any” for the Source and Destination IP addresses. In the Protocol field provided, we choose the protocols through which our local computer can access the internet. Lastly, we create Deny rules where we enter the value “Any” for the Source and Destination IP addresses. In the Protocol field, we set the values TCP and UDP, thus blocking internet access for unspecified protocols. Allow remote control of your router This rule enables you to access, view, or change your Router Settings remotely (over the internet). Typically, access to routers from the internet is blocked by default. To set this rule, you need specific data such as your router username, WAN IP address, and password. It is crucial to note that this setting is unsafe for individuals who use public IP addresses. A similar use case is a rule enabling users to check a device’s availability on their network by allowing ICMP ping requests. Block access from a defined internet subnet or an external network You can set a rule that blocks access to your network from a defined internet subnet or an external network. This rule is especially important if you observed repeated attempts to access your router from unknown IP addresses within the same subnet. In this case, set a Deny rule for IP addresses of the subnet attempting to access your WAN port. Schedule a Demo What are examples of best practices for setting up firewall rules? It is expedient to follow best practices during firewall configuration to protect your network from intruders and hackers. Deploying industry-standard rules when setting up firewalls can improve the security of your network and system components. Below are examples of the best practices for setting up firewall rules. Document firewall rules across multiple devices Documenting all firewall rule configurations and updating them frequently across various devices is one of the best practices for staying ahead of attacks. New rules should be included based on security needs, and irrelevant rules should be deactivated to reduce the possibility of a loophole in your network. With documentation, administrators can review the rules frequently and make any required changes whenever a vulnerability is detected. Configure your firewall to block traffic by default Using a block or deny-by-default policy is the safest way to deal with suspicious traffic. Enterprises must be sure that all types of traffic entering their network are identified and trusted to avoid security threats. In addition, whenever a vulnerability arises in the system, blocking by default helps prevent hackers from taking advantage of loopholes before administrators can respond. Monitor firewall logs Monitoring firewall logs on a regular basis helps maintain network security. Administrators can quickly and easily track traffic flow across your network, identify suspicious activity, and implement effective solutions in a timely manner. Organizations with highly sophisticated infrastructure can aggregate logs from routers, servers, switches, and other components to a centralized platform for monitoring. Group firewall rules to minimize complexity and enhance performance Depending on the complexity of your network, you may need thousands of rules to achieve effective network security. This complicates your firewall rules and can be a huge challenge for administrators. However, by grouping rules based on similar characteristics like protocols, TCP ports, IP addresses, etc., you simplify them and boost overall performance. Implement least-privileged access In any organization, employees have various roles and may require different data to execute their tasks efficiently. As part of network security practices, it’s important to ensure each employee’s access to the network is restricted to the minimum privileges needed to execute their tasks. Only users who require access to a particular service or resource should have it, thus preventing unnecessary exposure of data. This practice significantly minimizes the risk of intentional and accidental unauthorized access to sensitive data. Schedule a Demo How do firewall policies differ from a network security policy? A network security policy outlines the overall rules, principles, and procedures for maintaining security on a computer network. The policy sets out the basic architecture of an organization’s network security environment, including details of how the security policies are implemented. The overall objective of network security policy is to protect a computer network against internal and external threats. Firewall policies are a sub-group of network security policies, and refer to policies that relate specifically to firewalls. Firewall policies have to do with rules for how firewalls should handle inbound and outbound traffic to ensure that malicious actors do not penetrate the network. A firewall policy determines the types of traffic that should flow through your network based on your organization’s network and information security policies. Schedule a Demo How can AlgoSec help with managing your firewall rules? Proper firewall configuration with effective rules and practices is crucial to building a formidable network security policy. Organizations must follow industry standards in configuring firewall rules and protecting their IT landscape from intruders and malicious actors. Firewall rules require regular review and update to maintain maximum protection against evolving threats and changing security demands. For many organizations, keeping up with these fast-paced security demands can be challenging, and that’s where AlgoSec comes in. AlgoSec helps with managing your firewall rules to ensure your network enjoys round-the-clock protection against internal and external security threats. From installation to maintenance, we assist you in setting up a resilient firewall that operates on the safest rulesets to keep your network safe against harmful traffic. We have dedicated tools that take away the burden of aggregating and analyzing logs from the components in your network, including computers, routers, web servers, switches, etc. We determine which new rules are needed for effective firewall network security policy management based on data from your firewall devices and security trends. AlgoSec will ensure your firewall stays compliant with best practices by applying our automated auditing solution, which identifies gaps in your firewall rules and enables you to remediate them before hackers take advantage of such loopholes. Schedule a Demo Select a size Securing your network: guide to firewall rules examples Firewalls and your network What are firewall rules? What are the most common firewall ruleset examples? What are examples of best practices for setting up firewall rules? How do firewall policies differ from a network security policy? How can AlgoSec help with managing your firewall rules? Get the latest insights from the experts Use these six best practices to simplify compliance and risk White paper Learn how AlgoSec can help you pass PCI-DSS Audits and ensure Solution overview See how this customer improved compliance readiness and risk Case study Choose a better way to manage your network

Learn what firewall compliance automation is, how it supports audit readiness, and what evidence teams need to manage firewall changes with governance What is firewall compliance automation? ---- ------- Schedule a Demo Select a size ----- Get the latest insights from the experts Choose a better way to manage your network

Explore customer testimonials showcasing Algosec's impact on network security management, efficiency, and compliance success stories. What our customers say about us "AlgoSec helps you understand the traffic around your applications, and it's all at your fingertips." Todd Sharer System Engineer at Nationwide Insurance Trusted by over 2,200 organizations since 2004 Out of gallery Want to see it in action? Schedule a 30 minutes call with an expert Schedule a call Gulu Demirag Cyber Security Expert Soitron Siber Güvenlik Servisleri "The ability to automate policy analysis, optimize configurations, and visualize security risks allow organizations to mitigate threats and reduce the risk of security breaches proactively. By providing visibility into security risks, compliance gaps, and application connectivity requirements, AlgoSec helps organizations strengthen their security posture." View quote Orange Cyberdefense "We cut the time it takes to implement firewall rules by at least 50%." View quote "My experience with alogsec has been exceptional. Its automation capabilities and comprehensive visibility have transformed our network security management." View quote Network & Security Engineer ALTEPRO solutions a.s. "AlgoSec gives organizations the visibility and intelligence needed to make application connectivity changes confidently while managing risk and compliance." View quote Manager, IT Security and Risk Management IT Services "Zero complaints: the product hits the mark" View quote BT "AlgoSec now does the heavy lifting for us. It allows the engineers to focus more on providing greater levels of security than on process and change, so we're able to provide a much more secure infrastructure for BT"" View quote Matt White Security Engineer AAA "AlgoSec has been instrumental in running policy analysis jobs against our CheckPoint environment for PCI. A great solution for all our PCI needs!" View quote "The solution helps with managing a multi-cloud environment, as well as providing a critical priority rating. The product itself also has advanced threat prevention capabilities which help in solving most of the threats." View quote John Kucharski Senior Network Operations DIRECTV "I like how AlgoSec can analyze firewall configurations and suggest ways of cleaning it up. AlgoSec can highlight rules that are unused, objects that are not attached to ACLs and even find rules that perform the same function and can be consolidated." View quote Maksym Toporkov CISO CISOQuipu GmbH "Must have for most companies!" View quote Manager, IT Security and Risk Management IT Services "Zero complaints: the product hits the mark" View quote "The solution helps with managing a multi-cloud environment, as well as providing a critical priority rating. The product itself also has advanced threat prevention capabilities which help in solving most of the threats." View quote Sanofi "Using AlgoSec during our data center migration allowed us to give technical project leaders access to all of the rules involved in the migration of their applications, which reduced the IT security team's time on these projects by 80%. The application was very useful, simple to use and made everybody happy." View quote State of Utah "AlgoSec's automation really stands out." View quote Atruvia "AlgoSec's Security Management Solution is incredibly powerful. Its intelligent process improvements have directly translated into the highest level of security and compliance for our customers' networks." View quote Orange Cyberdefense "We cut the time it takes to implement firewall rules by at least 50%." View quote BT "AlgoSec now does the heavy lifting for us. It allows the engineers to focus more on providing greater levels of security than on process and change, so we're able to provide a much more secure infrastructure for BT"" View quote Get a demo Rated #1 security product What our customers say about us "AlgoSec help you to understand the traffic around the applications and it's all on your fingertips" Scott Theriault Global Manager Network Perimeter Security, NCR Corporation Sanofi "Using AlgoSec during our data center migration allowed us to give technical project leaders access to all of the rules involved in the migration of their applications, which reduced the IT security team's time on these projects by 80%. The application was very useful, simple to use and made everybody happy." View quote Security Engineer Supply Chain "AlgoSec simplifies network security management. Great offering." View quote Joanne Lu Program manger Qantas "With AlgoSec we are proactively seeing all the changes and reducing the risks that we have regarding requirements for SOX as well as maintaining all the policies for information security." View quote State of Utah "AlgoSec's automation really stands out." View quote Security Engineer Banking "AlgoSec has revolutionized our secops. Its intuitive interface and automation have made policy management a breeze" View quote Rami Obeidat Senior Communication Officer ANB - Arab National Bank Saud "We had a great AlgoSec deployment" View quote Atruvia "AlgoSec's Security Management Solution is incredibly powerful. Its intelligent process improvements have directly translated into the highest level of security and compliance for our customers' networks." View quote Senior Network Engineer Manufacturing "Automation and orchestration can be considered as one of the major benefits. Visibility on the devices that we use, thus ensuring service reliability." View quote Felipe-Vieira Security Manager PTLS STA Tec. Ltda "The performance boost we had was huge. We were considering buying new firewall structures, but with AlgoSec, we just organized the rules and avoided spending more money on the environment." View quote Want to see it in action? Schedule a call with a AlgoSec expert Get a demo

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Compared to on-premises data storage, cloud computing comes with a lot of benefits. On-demand access to company data, flexibility, and... Cloud Security What is a Cloud Security Assessment? (and How to Perform One) Rony Moshkovich 2 min read Rony Moshkovich 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 7/12/23 Published Compared to on-premises data storage, cloud computing comes with a lot of benefits. On-demand access to company data, flexibility, and fast collaboration are just a few. But along with these advantages come increased security risks. To manage them, companies should invest in regular cloud security assessments. What Is a Cloud Security Risk Assessment? A cloud security assessment evaluates the potential vulnerabilities of an organization’s cloud environment. These assessments are essential to mitigate risks and ensure the continued security of cloud-based systems. By looking at cloud applications, services, and data, companies can better understand the biggest threats to their cloud environment. By managing these threats, businesses can avoid costly workflow interruptions. A security assessment can be done by an organization’s internal security team or by an outside security expert. This can happen one time only, or it can be done regularly as part of an organization’s overall cybersecurity plan. How Do Cloud Security Risk Assessments Protect Your Business? Cloud-based systems and services are an essential part of most businesses nowadays. Unfortunately, what makes them convenient is also what makes them vulnerable to security threats. A cloud security risk assessment helps organizations find out what might go wrong and prevent it from happening. It also helps with prioritizing and managing the most serious issues before they become full-on data breaches. One way assessments do this is by identifying misconfigurations. Cloud misconfigurations are behind many security breaches. They result from errors introduced by network engineers working on early cloud systems. A cloud security assessment earmarks these and other outmoded security features for repair. What’s more, cloud security assessments identify third-party risks from APIs or plugins. When your company identifies risks and manages permissions, you keep your cloud environment safe. By mitigating third-party risks, you can still benefit from outside vendors. Of course, none of this information is valuable without employee education. Employees need to know about risks and how to stop them; this is the best way to reduce the number of security incidents caused by human error or carelessness. To put it simply, a cloud security assessment helps your business run smoothly. When you know the risks your company faces and can manage them, you reduce the impact of security-related incidents. That means you can recover faster and get back to work sooner. 7 Benefits of Cloud Security Risk Assessments Cloud security risk assessments provide lots of benefits. They can help you: Improve cloud security posture . Understanding the ins and outs of a cloud-based system helps organizations plan better. For example, they can modify their security budget or improve their risk management strategy based on the results. Uncover security vulnerabilities . Cloud security assessments pinpoint weak spots. This includes misconfigurations , access control issues, and missing multi-factor authentications (MFAs). Once identified, organizations can fix the issues and avoid security breaches. Develop a more secure multi-cloud environment . Most organizations use multiple cloud platforms. Usually, this involves private or public clouds or a combination of both. This is ideal from a financial and agility perspective. But every extra layer in a cloud environment introduces potential risks. A cloud security assessment is essential in identifying these cross-cloud threats. Achieve compliance with industry standards and regulatory bodies . Ensuring compliance with GDPR, PCI-DSS, and HIPAA helps protect organizations from millions of dollars of potential fines . Manage your reputation. A sensitive data leak or other cloud security incident damages a company’s reputation. Think of companies like Target, Facebook, and LinkedIn. All have faced backlash after security breaches . Conducting cloud security assessments shows that organizations value customer and stakeholder privacy. Detect past threats . A cloud security assessment looks for things that might be wrong with the way your cloud system is set up. It can also help you find out if there have been any past security problems. By doing this, you can see if someone has tried to tamper with the security of your cloud system in the past, which could signal a bigger problem. Increase efficiency . Cloud security assessments show you which security measures are working and which aren’t. By getting rid of security tools that aren’t needed, employees have more time to work on other tasks. Cost savings . The most compelling reason to run a cloud security assessment is that it helps save money. Cost savings come from eliminating unnecessary security measures and from missed work time due to breaches. What Risks Do Cloud Security Assessments Look For? Cloud security assessments focus on six areas to identify security vulnerabilities in your cloud infrastructure: overall security posture, access control and management, incident management, data protection, network security, and risk management and compliance. Some specific risks cloud security assessments look for include: Cloud Misconfigurations Misconfigurations are one of the most common threats to overall security posture. In fact, McAfee’s enterprise security study found that enterprises experience 3,500 security incidents per month because of misconfigurations. From improperly stored passwords to insecure automated backups, misconfiguration issues are everywhere. Because they’re so common, fixing this issue alone can reduce the risk of a security breach by up to 80%, according to Gartner . Access Control and Management Problems This assessment also highlights ineffective access control and management. One way it does this is by identifying excessive network permissions. Without the proper guardrails (like data segmentation) in place, an organization’s attack surface is greater. Plus, its data is at risk from internal and external threats. If an employee has too much access to a company’s network, they might accidentally delete or change important information. This could cause unintended system problems. Additionally, if hackers get access to the company’s network, they could easily steal important data. Cloud security assessments also look at credentials as part of user account management. A system that uses only static credentials for users or cloud workloads is a system at risk. Without multifactor authentication (MFA) in place, hackers can gain access to your system and expose your data. Improper Incident Management and Logging When it comes to incident management, a cloud security assessment can reveal insufficient or improper logging — problems that make detecting malicious activities more difficult. Left unchecked, the damage is more severe, making recovery more time-consuming and expensive. Insufficient Data and Network Security Data protection and network security go hand in hand. Without proper network controls in place (for example firewalls and intrusion detection), data in the cloud is vulnerable to attack. A cloud security assessment can identify gaps in both areas. Based on the results of a cloud security assessment, a company can make a risk management plan to help them react as quickly and effectively as possible in the event of an attack. The last aspect of cloud security the assessment looks at is compliance with industry standards. 7 Steps To Perform a Cloud Security Assessment The main components of cloud security assessments include: Identifying your cloud-based assets, discovering vulnerabilities through testing, generating recommendations, and retesting once the issues have been addressed. The steps to performing a cloud security assessment are as follows: Step One: Define the project Get a picture of your cloud environment. Look at your cloud service providers (CSPs), third-party apps, and current security tools. First, decide which parts of your system will be evaluated. Next, look at the type of data you’re handling or storing. Then consider the regulations your business must follow. Step Two: Identify potential threats Look at both internal and external threats to your cloud-based system. This could include endpoint security, misconfigurations, access control issues, data breaches, and more. Then figure out how likely each type of attack is. Finally, determine what impact each attack would have on your business operations. Step Three: Examine your current security system Look for vulnerabilities in your existing cloud security. In particular, pay attention to access controls, encryption, and network security. Step Four: Test Penetration testing, port scanners, and vulnerability scanners are used to find weaknesses in your cloud environment that were missed during the original risk assessment. Step Five: Analyze Look at the results and determine which weaknesses need immediate attention. Deal with the issues that will have the biggest impact on your business first. Then, focus on the issues most likely to occur. Finish by handling lower-priority threats. Step Six: Develop an action plan Come up with a time-bound remediation plan. This plan should spell out how your organization will deal with each security vulnerability. Assign roles and responsibilities as part of your incident response program. Depending on the results, this could include updating firewalls, monitoring traffic logs, and limiting access control. Step Seven: Maintain Cloud security assessments can be done as a one-off, but it’s much better to monitor your systems regularly. Frequent monitoring improves your organization’s threat intelligence. It also helps you identify and respond to new threats in real time. Getting Help With Your Cloud Security Assessment Cloud security assessment tools are used to identify vulnerabilities in a cloud infrastructure which could lead to data loss or compromise by attackers. As an agentless cloud security posture management (CSPM) tool , Prevasio helps identify and fix security threats across all your cloud assets in minutes. Our deep cloud scan checks for security weaknesses, malware, and compliance. This helps ensure that your company’s cloud environment is protected against potential risks. But any CSPM can do that . Prevasio is the only solution that provides container security dynamic behavior analysis. Our technology spots hidden backdoors in your container environments. It also identifies supply chain attack risks. Paired with our container security static analysis for vulnerabilities and malware, your containers will never be safer. Our CSPM works across multi-cloud, multi-accounts, cloud-native services , and cloud assets. Whether you’re using Microsoft Azure, S3 buckets in AWS, or Cosmos DB in GCP, Prevasio is the security system your company has been looking for. But we do more than identify security threats. We increase your team’s efficiency. How? By providing a prioritized list of cloud risks ranked according to CIS benchmarks. That means no more uncertainty about what needs to get done. Our easy-to-understand results help your team concentrate on the most important things. This saves time and money by reducing the need for extra administrative work. A Final Word on Cloud Security Assessments Performing regular cloud security assessments helps your business spot security issues before they become major problems. When you reinforce your security controls and define your incident response plan, you make your organization more efficient. Plus, you keep things going even when issues arise. Put together, these proactive measures can save you money. Sign up today and see how Prevasio can help your team ! FAQs About Cloud Security Assessments What are the four areas of cloud security? The four pillars of cloud security are data availability, data confidentiality, data integrity, and regulatory compliance. What is included in a security assessment? Cloud security assessments include: Identifying your cloud-based assets, discovering vulnerabilities through testing, generating recommendations, and retesting once the issues have been addressed. 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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Firewalls are one of the most important cybersecurity solutions in the enterprise tech stack. They can also be the most demanding.... Firewall Change Management 20 Firewall Management Best Practices for Network Security Asher Benbenisty 2 min read Asher Benbenisty 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 10/29/23 Published Firewalls are one of the most important cybersecurity solutions in the enterprise tech stack. They can also be the most demanding. Firewall management is one of the most time-consuming tasks that security teams and network administrators regularly perform. The more complex and time-consuming a task is, the easier it is for mistakes to creep in. Few organizations have established secure network workflows that include comprehensive firewall change management plans and standardized firewall best practices. This makes implementing policy changes and optimizing firewall performance riskier than it needs to be. According to the 2023 Verizon Data Breach Investigation Report, security misconfigurations are responsible for one out of every ten data breaches. ( * ) This includes everything from undetected exceptions in the firewall rule base to outright policy violations by IT security teams. It includes bad firewall configuration changes, routing issues, and non-compliance with access control policies. Security management leaders need to pay close attention to the way their teams update firewall rules, manipulate firewall logs, and establish audit trails. Organizations that clean up their firewall management policies will be better equipped to automate policy enforcement, troubleshooting, and firewall migration. 20 Firewall Management Best Practices Right Now 1. Understand how you arrived at your current firewall policies: Most security leaders inherit someone else’s cybersecurity tech stack the moment they accept the job. One of the first challenges is discovering the network and cataloging connected assets. Instead of simply mapping network architecture and cataloging assets, go deeper. Try to understand the reasoning behind the current rule set. What cyber threats and vulnerabilities was the organization’s previous security leader preparing for? What has changed since then? 2. Implement multiple firewall layers: Layer your defenses by using multiple types of firewalls to create a robust security posture. Configure firewalls to address specific malware risks and cyberattacks according to the risk profile of individual private networks and subnetworks in your environment. This might require adding new firewall solutions, or adding new rules to existing ones. You may need to deploy and manage perimeter, internal, and application-level firewalls separately, and centralize control over them using a firewall management tool. 3. Regularly update firewall rules: Review and update firewall rules regularly to ensure they align with your organization’s needs. Remove outdated or unnecessary rules to reduce potential attack surfaces. Pay special attention to areas where firewall rules may overlap. Certain apps and interfaces may be protected by multiple firewalls with conflicting rules. At best, this reduces the efficiency of your firewall fleet. At worst, it can introduce security vulnerabilities that enable attackers to bypass firewall rules. 4. Apply the principle of least privilege: Apply the principle of least privilege when creating firewall rules . Only grant access to resources that are necessary for specific roles or functions. Remember to remove access from users who no longer need it. This is difficult to achieve with simple firewall tools. You may need policies that can follow users and network assets even as their IP addresses change. Next-generation firewalls are capable of enforcing identity-based policies like this. If your organization’s firewall configuration is managed by an outside firm, that doesn’t mean it automatically applies this principle correctly. Take time to review your policies and ensure no users have unjustified access to critical network resources. . 5. Use network segmentation to build a multi-layered defense: Use network segmentation to isolate different parts of your network. This will make it easier to build and enforce policies that apply the principle of least privilege. If attackers compromise one segment of the network, you can easily isolate that segment and keep the rest secure. Pay close attention to the inbound and outbound traffic flows. Some network segments need to accept flows going in both directions, but many do not. Properly segmented networks deny network traffic traveling along unnecessary routes. You may even decide to build two entirely separate networks – one for normal operations and one for management purposes. If the networks are served by different ISPs, an attack against one may not lead to an attack against the other. Administrators may be able to use the other network to thwart an active cyberattack. 6. Log and monitor firewall activity: Enable firewall logging and regularly review logs for suspicious activities. Implement automated alerts for critical events. Make sure you store firewall logs in an accessible low-cost storage space while still retaining easy access to them when needed. You should be able to pull records like source IP addresses on an as-needed basis. Consider implementing a more comprehensive security information and event management (SIEM) platform. This allows you to capture and analyze log data from throughout your organization in a single place. Analysts can detect and respond to threats more effectively in a SIEM-enabled environment. Consider enabling logging on all permit/deny rules. This will provide you with evidence of network intrusion and help with troubleshooting. It also allows you to use automated tools to optimize firewall configuration based on historical traffic. 7. Regularly test and audit firewall performance: Conduct regular security assessments and penetration tests to identify vulnerabilities. Perform security audits to ensure firewall configurations are in compliance with your organization’s policies. Make sure to preview the results of any changes you plan on making to your organization’s firewall rules. This can be a very complex and time-consuming task. Growing organizations will quickly run out of time and resources to effectively test firewall configuration changes over time. Consider using a firewall change management platform to automate the process. 8. Patch and update firewall software frequently: Keep firewall firmware and software up to date with security patches. Vulnerabilities in outdated software can be exploited, and many hackers actively read update changelogs looking for new exploits. Even a few days’ delay can be enough for enterprising cybercriminals to launch an attack. Like most software updates, firewall updates may cause compatibility issues. Consider implementing a firewall management tool that allows you to preview changes and proactively troubleshoot compatibility issues before downloading updates. 9. Make sure you have a reliable backup configuration: Regularly backup firewall configurations. This ensures you can quickly restore settings in case of a failure or compromise. If attackers exploit a vulnerability that allows them to disable your firewall system, restoring an earlier version may be the fastest way to remediate the attack. When scheduling backups, pay special attention to Recovery Point Objectives (RPO) and Recovery Time Objectives (RTO). RPO is the amount of time you can afford to let pass between backups. RTO is the amount of time it takes to fully restore the compromised system. 10. Deploy a structured change management process: Implement a rigorous change management process for firewall rule modifications. Instead of allowing network administrators and IT security teams to enact ad-hoc changes, establish a proper approval process that includes documenting all changes implemented. This can slow down the process of implementing firewall policy changes and enforcing new rules. However, it makes it much easier to analyze firewall performance over time and generate audit trails after attacks occur. Organizations that automate the process can enjoy both well-documented changes and rapid implementation. 11. Implement intrusion detection and prevention systems (IDPS): Use IDPS in conjunction with firewalls to detect and prevent suspicious or malicious traffic. IDPS works in conjunction with properly configured firewalls to improve enterprise-wide security and enable security teams to detect malicious behavior. Some NGFW solutions include built-in intrusion and detection features as part of their advanced firewall technology. This gives security leaders the ability to leverage both prevention and detection-based security from a single device. 12. Invest in user training and awareness: Train employees on safe browsing habits and educate them about the importance of firewall security. Make sure they understand the cyber threats that firewalls are designed to keep out, and how firewall rules contribute to their own security and safety. Most firewalls can’t prevent attacks that exploit employee negligence. Use firewall training to cultivate a security-oriented office culture that keeps employees vigilant against identity theft , phishing attacks, social engineering, and other cyberattack vectors. Encourage employees to report unusual behavior to IT security team members even if they don’t suspect an attack is underway. 13. Configure firewalls for redundancy and high availability: Design your network with redundancy and failover mechanisms to ensure continuous protection in case of hardware or software failures. Multiple firewalls can work together to seamlessly take over when one goes offline, making it much harder for attackers to capitalize on firewall downtime. Designate high availability firewalls – or firewall clusters – to handle high volume traffic subject to a wide range of security threats. Public-facing servers handling high amounts of inbound traffic typically need extra protection compared to internal assets. Rule-based traffic counters can provide valuable insight into which rules activate the most often. This can help prioritize the most important rules in high-volume usage scenarios. 14. Develop a comprehensive incident response plan: Develop and regularly update an incident response plan that includes firewall-specific procedures for handling security incidents. Plan for multiple different scenarios and run drills to make sure your team is prepared to respond to the real thing when it comes. Consider using security orchestration, automation, and response (SOAR) solutions to create and run automatic incident response playbooks. These playbooks can execute with a single click, instantly engaging additional protections in response to security threats when detected. Be ready for employees and leaders to scrutinize firewall deployments when incidents occur. It’s not always clear whether the source of the issue was the firewall or not. Get ahead of the problem by using a packet analyzer to find out if firewall misconfiguration led to the incident or not early on. 15. Stay ahead of compliance and security regulations: Stay compliant with relevant industry regulations and standards, such as GDPR , HIPAA, or PCI DSS , which may have specific firewall requirements. Be aware of changes and updates to regulatory compliance needs. In an acquisition-oriented enterprise environment, managing compliance can be very difficult. Consider implementing a firewall management platform that provides a centralized view of your entire network environment so you can quickly identify underprotected networks. 16. Don’t forget about documentation: Maintain detailed documentation of firewall configurations, network diagrams, and security policies for reference and auditing purposes. Keep these documents up-to-date so that new and existing team members can use them for reference whenever they need to interact with the organization’s firewall solutions. Network administrators and IT security team members aren’t always the most conscientious documentation creators. Consider automating the process and designating a special role for maintaining and updating firewall documentation throughout the organization. 17. Regularly review and improve firewall performance: Continuously evaluate and improve your firewall management practices based on evolving threats and changing business needs. Formalize an approach to reviewing, updating, and enforcing new rules using data gathered by your current deployment. This process requires the ability to preview policy changes and create complex “what-if” scenarios. Without a powerful firewall change management platform in place, manually conducting this research may be very difficult. Consider using automation to optimize firewall performance over time. 18. Deploy comprehensive backup connectivity: In case of a network failure, ensure there’s a backup connectivity plan in place to maintain essential services. Make sure the plan includes business continuity solutions for mission-critical services as well as security controls that maintain compliance. Consider multiple disaster scenarios that could impact business continuity. Security professionals typically focus on cyberattacks, but power outages, floods, earthquakes, and other natural phenomena can just as easily lead to data loss. Opportunistic hackers may take advantage of these events to strike when they think the organization’s guard is down. 19. Make sure secure remote access is guaranteed: If remote access to your network is required, use secure methods like VPNs and multi-factor authentication (MFA) for added protection. Make sure your firewall policies reflect the organization’s remote-enabled capabilities, and provide a secure environment for remote users to operate in. Consider implementing NGFW solutions that can reliably identify and manage inbound VPN connections without triggering false positives. Be especially wary of firewall rules that automatically deny connections without conducting deeper analysis to find out whether it was for legitimate user access. 20. Use group objects to simplify firewall rules: Your firewall analyzer allows you to create general rules and apply them to group objects, applying the rule to any asset in the group. This allows you to use the same rule set for similar policies impacting different network segments. You can even create a global policy that applies to the whole network and then refine that policy further as you go through each subnetwork. Be careful about nesting object groups inside one another. This might look like clean firewall management, but it can also create problems when the organization grows, and it can complicate change management. You may end up enforcing contradictory rules if your documentation practices can’t keep up. 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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With the rapid proliferation of cloud computing, lean deployment methods, such as containers, have become common practice. According to... Cloud Security Intro to Kubernetes Security Best Practices Rony Moshkovich 2 min read Rony Moshkovich 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 11/27/20 Published With the rapid proliferation of cloud computing, lean deployment methods, such as containers, have become common practice. According to CIO.com, 70% of global companies are expected to be running multiple apps simultaneously using a containerized framework, like Kubernetes in the next few years. But as Kubernetes’ use becomes more widespread, so do the vulnerabilities inherent to containerization. According to a 2019 Forbes article , Kubernetes had at least 7,000 identified vulnerabilities at the beginning of 2019 alone. Couple that with the fact that cyber-attacks involving containerization have increased a whopping 240% since 2018, and you’ll understand the value of security should your company use a solution like Kubernetes to handle its container orchestration. What Causes Kubernetes Security Blindspots? To understand how to best optimize your Kubernetes experience, it’s worthwhile to understand the basic ways security issues arise in a containerized framework. Images are the core building blocks of containerization; they are the executable process at the centre of your container. As a result, anything that exposes an image to a broader audience puts the container at risk of being hijacked. One of the primary ways this occurs is by using out-of-date software. Using old software gives malicious actors a small incongruence that they can exploit within the code. Another problem is poorly defined user access roles. If sensible changes aren’t made to an orchestration tool’s default settings, inappropriate parties may have access to alter the container’s core executable. Containerization gives you a way to manage a large number of processes easily and with increased adaptability. As a result, automation makes it impossible to keep your eyes on everything at once. Here are some best practices that can help you counter the wide range of vulnerabilities inherent to containerization and Kubernetes in general. Kubernetes Security Best Practices Given the architecture of the Kubernetes framework, security risks are a constant and evolving threat. Luckily, Google made Kubernetes an open-source application under the auspices of the Cloud Native Computing Foundation where solutions to new security issues are actively crowdsourced by the community. Regardless, there are a number of things that you can do during the build, deployment, and runtime phases to make your Kubernetes implementation more secure. Take care of your images Images are the heart of every container. Executable functions are essential, so images must be well-maintained and in good working order. Only use up-to-date images, scanning them regularly for security issues. As a rule of thumb, you should also avoid including unnecessary tools and functions in your image coding as they can inadvertently give hackers an access route. Ensure that your secrets remain secret The term “secrets” refers to any private information such as login credentials, tokens, or other sensitive data. While it’s not customary to keep sensitive data stored adjacent to the container’s image, the scenario has come up before. Keep secret data as far from the image as possible in order to increase security. Keep up-to-date with scans and security patches The community does a good job of patching Kubernetes when issues arise. If you don’t take the time to update both your OS and Kubernetes’ security, you give malware additional avenues of attack. Updates should be performed at least every nine months, if not more often. Due to the nature of how Kubernetes works, if you are using an outdated version, you could actively be spreading issues when the container is deployed elsewhere. Take advantage of customization to define user roles and access A container orchestration tool like Kubernetes is a complex web running thousands of processes across numerous machines. That means hundreds of end-users involved with the application. Take advantage of Kubernetes administrative functions to clearly define user roles, limiting full access for those who don’t need it. As they say, too many cooks spoil the broth. Keeping Kubernetes Simple and Safe Containers are an agile, lightweight framework for cloud computing, but manually deploying the correct containers to their destinations can quickly become overwhelming. An orchestration tool like Kubernetes is the perfect solution to managing your containerization, but the security risks inherent to this model can be restrictive. By keeping a few key practices in mind when implementing Kubernetes into your workflow, you can help to promote safety while streamlining your processes. To Sum It All Up Kubernetes has become the centrepiece of the cloud Native landscape and a notable advantage for organizations to rapidly manage and deploy their containerized business logic. But certain security best practices must be followed such as working with reliable docker images, properly defined resource quotas, network policies, work with namespaces for access control and authentication\authorization, and more. To learn more about Prevasio integration and security for K8s containers, contact us today. 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