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Avishai Wool, CTO and co-founder of AlgoSec, looks at how organizations can implement and manage SDN-enabled micro-segmentation... Micro-segmentation Building a Blueprint for a Successful Micro-segmentation Implementation Prof. Avishai Wool 2 min read Prof. Avishai Wool 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 6/22/20 Published Avishai Wool, CTO and co-founder of AlgoSec, looks at how organizations can implement and manage SDN-enabled micro-segmentation strategies Micro-segmentation is regarded as one of the most effective methods to reduce an organization’s attack surface, and a lack of it has often been cited as a contributing factor in some of the largest data breaches and ransomware attacks. One of the key reasons why enterprises have been slow to embrace it is because it can be complex and costly to implement – especially in traditional on-premise networks and data centers. In these, creating internal zones usually means installing extra firewalls, changing routing, and even adding cabling to police the traffic flows between zones, and having to manage the additional filtering policies manually. However, as many organizations are moving to virtualized data centers using Software-Defined Networking (SDN), some of these cost and complexity barriers are lifted. In SDN-based data centers the networking fabric has built-in filtering capabilities, making internal network segmentation much more accessible without having to add new hardware. SDN’s flexibility enables advanced, granular zoning: In principle, data center networks can be divided into hundreds, or even thousands, of microsegments. This offers levels of security that would previously have been impossible – or at least prohibitively expensive – to implement in traditional data centers. However, capitalizing on the potential of micro-segmentation in virtualized data centers does not eliminate all the challenges. It still requires the organization to deploy a filtering policy that the micro-segmented fabric will enforce, and writing this a policy is the first, and largest, hurdle that must be cleared. The requirements from a micro-segmentation policy A correct micro-segmentation filtering policy has three high-level requirements: It allows all business traffic – The last thing you want is to write a micro-segmented policy and have it block necessary business communication, causing applications to stop functioning. It allows nothing else – By default, all other traffic should be denied. It is future-proof – ‘More of the same’ changes in the network environment shouldn’t break rules. If you write your policies too narrowly, when something in the network changes, such as a new server or application, something will stop working. Write with scalability in mind. A micro-segmentation blueprint Now that you know what you are aiming for, how can you actually achieve it? First of all, your organization needs to know what your traffic flows are – what is the traffic that should be allowed. To get this information, you can perform a ‘discovery’ process. Only once you have this information, can you then establish where to place the borders between the microsegments in the data center and how to devise and manage the security policies for each of the segments in their network environment. I welcome you to download AlgoSec’s new eBook , where we explain in detail how to implement and manage micro-segmentation. AlgoSec Enables Micro-segmentation The AlgoSec Security Management Suite (ASMS) employs the power of automation to make it easy to define and enforce your micro-segmentation strategy inside the data center, ensure that it does not block critical business services, and meet compliance requirements. AlgoSec supports micro-segmentation by: Providing application discovery based on netflow information Identifying unprotected network flows that do not cross any firewall and are not filtered for an application Automatically identifying changes that will violate the micro-segmentation strategy Automatically implementing network security changes Automatically validating changes The bottom line is that implementing an effective network micro-segmentation strategy is now possible. It requires careful planning and implementation, but when carried out following a proper blueprint and with the automation capabilities of the AlgoSec Security Management Suite, it provides you with stronger security without sacrificing any business agility. Find out more about how micro-segmentation can help you boost your security posture, or request your personal demo . Schedule a demo Related Articles 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 5 Multi-Cloud Environments Cloud Security 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

Partner solution brief AlgoSec and Check Point Download PDF Schedule time with one of our experts 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

AlgoSec tech audit services Download PDF Schedule time with one of our experts 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

Regulations and compliance for the data center – A Day in the Life Download PDF Schedule time with one of our experts 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

6 must-dos to secure the hybrid cloud Download PDF Schedule time with one of our experts 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

Secure application connectivity across your hybrid environment E-BOOK Download PDF Schedule time with one of our experts 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

Case Study Logisticas Download PDF Schedule time with one of our experts 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

The state of automation in security 2016 Download PDF Schedule time with one of our experts 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

Linux containers aren’t new. In fact, this technology was invented 20 years ago. In 2013, Docker entered the scene and revolutionized... Cloud Security Operation “Red Kangaroo”: Industry’s First Dynamic Analysis of 4M Public Docker Container Images 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 12/1/20 Published Linux containers aren’t new. In fact, this technology was invented 20 years ago. In 2013, Docker entered the scene and revolutionized Linux containers by offering an easy-to-use command line interface (CLI), an engine, and a registry server. Combined, these technologies have concealed all the complexity of building and running containers, by offering one common industry standard . As a result, Docker’s popularity has sky-rocketed, rivalling Virtual Machines, and transforming the industry. In order to locate and share Docker container images, Docker is offering a service called Docker Hub . Its main feature, repositories , allows the development community to push (upload) and pull (download) container images. With Docker Hub, anyone in the world can download and execute any public image, as if it was a standalone application. Today, Docker Hub accounts over 4 million public Docker container images . With 8 billion pulls (downloads) in January 2020 and growing , its annualized image pulls should top 100 billion this year. For comparison , Google Play has 2.7M Android apps in its store, with a download rate of 84 billion downloads a year. How many container images currently hosted at Docker Hub are malicious or potentially harmful? What sort of damage can they inflict? What if a Docker container image downloaded and executed malware at runtime? Is there a reliable way to tell that? What if a compromised Docker container image was downloaded by an unsuspecting customer and used as a parent image to build and then deploy a new container image into production, practically publishing an application with a backdoor built into it? Is there any way to stop that from happening? At Prevasio, we asked ourselves these questions multiple times. What we decided to do has never been done before. The Challenge At Prevasio, we have built a dynamic analysis sandbox that uses the same principle as a conventional sandbox that ‘detonates’ malware in a safe environment. The only difference is that instead of ‘detonating’ an executable file, such as a Windows PE file or a Linux ELF binary, Prevasio Analyzer first pulls (downloads) an image from any container registry, and then ‘detonates’ it in its own virtual environment, outside the organization/customer infrastructure. Using our solution, we then dynamically analyzed all 4 million container images hosted at Docker Hub. In order to handle such a massive volume of images, Prevasio Analyzer was executed non-stop for a period of one month on 800 machines running in parallel. The result of our dynamic scan reveals that: 51 percent of all containers had “critical” vulnerabilities, while 13 percent were classified as “high” and four percent as “moderate” vulnerabilities. Six thousand containers were riddled with cryptominers, hacking tools/pen testing frameworks, and backdoor trojans. While many cryptominers and hacking tools may not be malicious per se, they present a potentially unwanted issue to an enterprise. More than 400 container images (with nearly 600,000 pulls) of weaponized Windows malware crossing over into the world of Linux. This crossover is directly due to the proliferation of cross-platform code (e.g. GoLang, .NET Core and PowerShell Core). Our analysis of malicious containers also shows that quite a few images contain a dynamic payload. That is, an image in its original form does not have a malicious binary. However, at runtime, it might be scripted to download a source of a coinminer, to then compile and execute it. A dynamic analysis sandbox, such as Prevasio Analyzer, is the only solution that provides a behavioral analysis of Docker containers. It is built to reveal malicious intentions of Docker containers by executing them in its own virtual environment, revealing a full scope of their behavior. The whitepaper with our findings is available here . Schedule a demo Related Articles 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 5 Multi-Cloud Environments Cloud Security 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

Learn best practices to secure your cloud environment and deliver applications securely Webinars State of Ransomware: Caught between perception and reality Ransomware continues to be a major problem—and the problem is only getting worse. An exclusive ExtraHop 2022 survey conducted with over 500 security and IT decision makers provided some sobering responses: 85% of those surveyed reported suffering at least one ransomware attack while an alarming 74% have experienced multiple attacks. Yet most IT decision makers (77%) are confident in their ability to prevent or mitigate all cybersecurity threats, including ransomware. In this webinar, we take an in-depth look into the implications of this alarming trend and provide a turnkey strategy that organizations can implement today to safeguard their most critical data stored in their business applications and increase their level of ransomware preparedness. Join us for: * In-depth analysis of infamous ransomware attacks * Ways to identify and remediate vulnerabilities at the application level * A practical application centric approach that can support your pre-existing security measures * Mitigation measures to consider at the onset of your next ransomware attack * Ransomware future trends predictions January 24, 2023 Eric Jeffery Regional Sales Engineer Relevant resources Reducing risk of ransomware attacks - back to basics Keep Reading Fighting Ransomware - CTO Roundtable Insights Keep Reading Ransomware Attack: Best practices to help organizations proactively prevent, contain and Keep Reading Choose a better way to manage your network Choose a better way to manage your network Work email* First name* Last name* Company* country* Select country... Short answer* By submitting this form, I accept AlgoSec's privacy policy Continue

Manage Network Security Policies From Within Servicenow Download PDF Schedule time with one of our experts 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

A Comprehensive Cloud Security Checklist for Your Cloud Environment There’s a lot to consider when securing your cloud environment.... Cloud Security Cloud Security Checklist: Key Steps and 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 7/21/23 Published A Comprehensive Cloud Security Checklist for Your Cloud Environment There’s a lot to consider when securing your cloud environment. Threats range from malware to malicious attacks, and everything in between. With so many threats, a checklist of cloud security best practices will save you time. First we’ll get a grounding in the top cloud security risks and some key considerations. The Top 5 Security Risks in Cloud Computing Understanding the risks involved in cloud computing is a key first step. The top 5 security risks in cloud computing are: 1. Limited visibility Less visibility means less control. Less control could lead to unauthorized practices going unnoticed. 2. Malware Malware is malicious software, including viruses, ransomware, spyware, and others. 3. Data breaches Breaches can lead to financial losses due to regulatory fines and compensation. They may also cause reputational damage. 4. Data loss The consequences of data loss can be severe, especially it includes customer information. 5. Inadequate cloud security controls If cloud security measures aren’t comprehensive, they can leave you vulnerable to cyberattacks. Key Cloud Security Checklist Considerations 1. Managing User Access and Privileges Properly managing user access and privileges is a critical aspect of cloud infrastructure. Strong access controls mean only the right people can access sensitive data. 2. Preventing Unauthorized Access Implementing stringent security measures, such as firewalls, helps fortify your environment. 3. Encrypting Cloud-Based Data Assets Encryption ensures that data is unreadable to unauthorized parties. 4. Ensuring Compliance Compliance with industry regulations and data protection standards is crucial. 5. Preventing Data Loss Regularly backing up your data helps reduce the impact of unforeseen incidents. 6. Monitoring for Attacks Security monitoring tools can proactively identify suspicious activities, and respond quickly. Cloud Security Checklist Understand cloud security risks Establish a shared responsibility agreement with your cloud services provider (CSP) Establish cloud data protection policies Set identity and access management rules Set data-sharing restrictions Encrypt sensitive data Employ a comprehensive data backup and recovery plan Use malware protection Create an update and patching schedule Regularly assess cloud security Set up security monitoring and logging Adjust cloud security policies as new issues emerge Let’s take a look at these in more detail. Full Cloud Security Checklist 1. Understand Cloud Security Risks 1a. Identify Sensitive Information First, identify all your sensitive information. This data could range from customer information to patents, designs, and trade secrets. 1b. Understand Data Access and Sharing Use access control measures, like role-based access control (RBAC), to manage data access. You should also understand and control how data is shared. One idea is to use data loss prevention (DLP) tools to prevent unauthorized data transfers. 1c. Explore Shadow IT Shadow IT refers to using IT tools and services without your company’s approval. While these tools can be more productive or convenient, they can pose security risks. 2. Establish a Shared Responsibility Agreement with Your Cloud Service Provider (CSP) Understanding the shared responsibility model in cloud security is essential. There are various models – IaaS, PaaS, or SaaS. Common CSPs include Microsoft Azure and AWS. 2a. Establish Visibility and Control It’s important to establish strong visibility into your operations and endpoints. This includes understanding user activities, resource usage, and security events. Using security tools gives you a centralized view of your secure cloud environment. You can even enable real-time monitoring and prompt responses to suspicious activities. Cloud Access Security Brokers (CASBs) or cloud-native security tools can be useful here. 2b. Ensure Compliance Compliance with relevant laws and regulations is fundamental. This could range from data protection laws to industry-specific regulations. 2c. Incident Management Despite your best efforts, security incidents can still occur. Having an incident response plan is a key element in managing the impact of any security events. This plan should tell team members how to respond to an incident. 3. Establish Cloud Data Protection Policies Create clear policies around data protection in the cloud . These should cover areas such as data classification, encryption, and access control. These policies should align with your organizational objectives and comply with relevant regulations. 3a. Data Classification You should categorize data based on its sensitivity and potential impact if breached. Typical classifications include public, internal, confidential, and restricted data. 3b. Data Encryption Encryption protects your data in the cloud and on-premises. It involves converting your data so it can only be read by those who possess the decryption key. Your policy should mandate the use of strong encryption for sensitive data. 3c. Access Control Each user should only have the access necessary to perform their job function and no more. Policies should include password policies and changes of workloads. 4. Set Identity and Access Management Rules 4a. User Identity Management Identity and Access Management tools ensure only the right people access your data. Using IAM rules is critical to controlling who has access to your cloud resources. These rules should be regularly updated. 4b. 2-Factor and Multi-Factor Authentication Two-factor authentication (2FA) and multi-factor authentication (MFA) are useful tools. You reduce the risk by implementing 2FA or MFA, even if a password is compromised. 5. Set Data Sharing Restrictions 5a. Define Data Sharing Policies Define clear data-sharing permissions. These policies should align with the principles of least privilege and need-to-know basis. 5b. Implement Data Loss Prevention (DLP) Measures Data Loss Prevention (DLP) tools can help enforce data-sharing policies. These tools monitor and control data movements in your cloud environment. 5c. Audit and Review Data Sharing Activities Regularly review and audit your data-sharing activities to ensure compliance. Audits help identify any inappropriate data sharing and provide insights for improvement. 6. Encrypt Sensitive Data Data encryption plays a pivotal role in safeguarding your sensitive information. It involves converting your data into a coded form that can only be read after it’s been decrypted. 6a. Protect Data at Rest This involves transforming data into a scrambled form while it’s in storage. It ensures that even if your storage is compromised, the data remains unintelligible. 6b. Data Encryption in Transit This ensures that your sensitive data remains secure while it’s being moved. This could be across the internet, over a network, or between components in a system. 6c. Key Management Managing your encryption keys is just as important as encrypting the data itself. Keys should be stored securely and rotated regularly. Additionally, consider using hardware security modules (HSMs) for key storage. 6d. Choose Strong Encryption Algorithms The strength of your encryption depends significantly on the algorithms you use. Choose well-established encryption algorithms. Advanced Encryption Standard (AES) or RSA are solid algorithms. 7. Employ a Comprehensive Data Backup and Recovery Plan 7a. Establish a Regular Backup Schedule Install a regular backup schedule that fits your organization’s needs . The frequency of backups may depend on how often your data changes. 7b. Choose Suitable Backup Methods You can choose from backup methods such as snapshots, replication, or traditional backups. Each method has its own benefits and limitations. 7c. Implement a Data Recovery Strategy In addition to backing up your data, you need a solid strategy for restoring that data if a loss occurs. This includes determining recovery objectives. 7d. Test Your Backup and Recovery Plan Regular testing is crucial to ensuring your backup and recovery plan works. Test different scenarios, such as recovering a single file or a whole system. 7e. Secure Your Backups Backups can become cybercriminals’ targets, so they also need to be secured. This includes using encryption to protect backup data and implementing access controls. 8. Use Malware Protection Implementing robust malware protection measures is pivotal in data security. It’s important to maintain up-to-date malware protection and routinely scan your systems. 8a. Deploy Antimalware Software Deploy antimalware software across your cloud environment. This software can detect, quarantine, and eliminate malware threats. Ensure the software you select can protect against a wide range of malware. 8b. Regularly Update Malware Definitions Anti-malware relies on malware definitions. However, cybercriminals continuously create new malware variants, so these definitions become outdated quickly. Ensure your software is set to automatically update. 8c. Conduct Regular Malware Scans Schedule regular malware scans to identify and mitigate threats promptly. This includes full system scans and real-time scanning. 8d. Implement a Malware Response Plan Develop a comprehensive malware response plan to ensure you can address any threats. Train your staff on this plan to respond efficiently during a malware attack. 8e. Monitor for Anomalous Activity Continuously monitor your systems for any anomalous activity. Early detection can significantly reduce the potential damage caused by malware. 9. Create an Update and Patching Schedule 9a. Develop a Regular Patching Schedule Develop a consistent schedule for applying patches and updates to your cloud applications. For high-risk vulnerabilities, consider implementing patches as soon as they become available. 9b. Maintain an Inventory of Software and Systems You need an accurate inventory of all software and systems to manage updates and patches. This inventory should include the system version, last update, and any known vulnerabilities. 9c. Automation Where Possible Automating the patching process can help ensure that updates are applied consistently. Many cloud service providers offer tools or services that can automate patch management. 9d. Test Patches Before Deployment Test updates in a controlled environment to ensure work as intended. This is especially important for patches to critical systems. 9e. Stay Informed About New Vulnerabilities and Patches Keep abreast of new vulnerabilities and patches related to your software and systems. Being aware of the latest threats and solutions can help you respond faster. 9f. Update Security Tools and Configurations Don’t forget to update your cloud security tools and configurations regularly. As your cloud environment evolves, your security needs may change. 10. Regularly Assess Cloud Security 10a. Set up cloud security assessments and audits Establish a consistent schedule for conducting cybersecurity assessments and security audits. Audits are necessary to confirm that your security responsibilities align with your policies. These should examine configurations, security controls, data protection and incident response plans. 10b. Conduct Penetration Testing Penetration testing is a proactive approach to identifying vulnerabilities in your cloud environment. These are designed to uncover potential weaknesses before malicious actors do. 10c. Perform Risk Assessments These assessments should cover a variety of technical, procedural, and human risks. Use risk assessment results to prioritize your security efforts. 10d. Address Assessment Findings After conducting an assessment or audit, review the findings and take appropriate action. It’s essential to communicate any changes effectively to all relevant personnel. 10f. Maintain Documentation Keep thorough documentation of each assessment or audit. Include the scope, process, findings, and actions taken in response. 11. Set Up Security Monitoring and Logging 11a. Intrusion Detection Establish intrusion detection systems (IDS) to monitor your cloud environment. IDSs operate by recognizing patterns or anomalies that could indicate unauthorized intrusions. 11b. Network Firewall Firewalls are key components of network security. They serve as a barrier between secure internal network traffic and external networks. 11c. Security Logging Implement extensive security logging across your cloud environment. Logs record the events that occur within your systems. 11d. Automate Security Alerts Consider automating security alerts based on triggering events or anomalies in your logs. Automated alerts can ensure that your security team responds promptly. 11e. Implement Information Security and Event Management (SIEM) System A Security Information and Event Management (SIEM) system can your cloud data. It can help identify patterns, security breaches, and generate alerts. It will give a holistic view of your security posture. 11f. Regular Review and Maintenance Regularly review your monitoring and logging practices to ensure they remain effective. as your cloud environment and the threat landscape evolve. 12. Adjust Cloud Security Policies as New Issues Emerge 12a. Regular Policy Reviews Establish a schedule for regular review of your cloud security policies. Regular inspections allow for timely updates to keep your policies effective and relevant. 12b. Reactive Policy Adjustments In response to emerging threats or incidents, it may be necessary to adjust on an as-needed basis. Reactive adjustments can help you respond to changes in the risk environment. 12c. Proactive Policy Adjustments Proactive policy adjustments involve anticipating future changes and modifying your policies accordingly. 12d. Stakeholder Engagement Engage relevant stakeholders in the policy review and adjustment process. This can include IT staff, security personnel, management, and even end-users. Different perspectives can provide valuable insights. 12e. Training and Communication It’s essential to communicate changes whenever you adjust your cloud security policies. Provide training if necessary to ensure everyone understands the updated policies. 12f. Documentation and Compliance Document any policy adjustments and ensure they are in line with regulatory requirements. Updated documentation can serve as a reference for future reviews and adjustments. Use a Cloud Security Checklist to Protect Your Data Today Cloud security is a process, and using a checklist can help manage risks. Companies like Prevasio specialize in managing cloud security risks and misconfigurations, providing protection and ensuring compliance. Secure your cloud environment today and keep your data protected against threats. Schedule a demo Related Articles 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 5 Multi-Cloud Environments Cloud Security 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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