--- title: "Microsegmentation" id: "987539902" type: "page" slug: "microsegmentation" published_at: "2025-04-02T08:50:14+00:00" modified_at: "2026-02-15T05:36:17+00:00" url: "https://accuknox.com/solutions/microsegmentation" markdown_url: "https://accuknox.com/solutions/microsegmentation.md" excerpt: "What is network microsegmentation in Kubernetes, and why is it important?Network microsegmentation isolates workloads using network policies, preventing unauthorized lateral movement and reducing the attack surface. For example, it ensures only the WordPress frontend can communicate with the MySQL database,..." taxonomy_author: - "Mrinal" --- # When attackers breach your perimeter, will your Kubernetes pods survive? ## Don’t let **microsegmentation compromise** become a complete takeover ## Stop Threats Before They Spread ### Prevents Lateral Movement Blocks attackers from exploring your cluster with advanced segmentation. ### Granular Control Restrict pod-to-pod traffic with precision and automated policy enforcement. ### Compliance Ready Meet security regulations effortlessly with built-in compliance controls. - Policy DiscoveryAuto-detection of communication patterns and policy suggestions - Policy CreationSimplified policy generation with policy builder - EnforcementReal-time policy enforcement and monitoring - ComplianceNetwork Request Blocked at Runtime on Kubernetes Pods ## Micro and Nano Segmentation by AccuKnox Process-level and workload-level control built directly into our Zero Trust runtime engine. - AccuKnox delivers micro segmentation that defines strict ingress and egress rules for every workload. - AccuKnox extends this with nano segmentation that isolates communication at the process level inside containers and hosts. - Our runtime engine ties policies to workloads and processes, not the network, to enforce zero trust with precise control. - Both capabilities reduce lateral movement and maintain consistent protection across cloud, on-prem, and air-gapped environments. ## Network Policy Examples `apiVersion: networking.k8s.io/v1 kind: NetworkPolicy metadata: name: db-access-policy namespace: production spec: podSelector: matchLabels: app: mysql ingress: - from: - podSelector: matchLabels: role: backend ports: - port: 3306 protocol: TCP` ### Database Access Control - Restrict database access to authorized services - Prevent unauthorized scanning & reconnaissance - Enable monitoring of all connection attempts `apiVersion: networking.k8s.io/v1 kind: NetworkPolicy metadata: name: tenant-isolation namespace: tenant-a spec: podSelector: {} ingress: - from: - namespaceSelector: matchLabels: tenant: a egress: - to: - namespaceSelector: matchLabels: shared: true` ### Multi-tenant Isolation - Complete isolation between tenant namespaces - Allow specific cross-namespace communication - Enforce strict egress controls ### Talk to Security Experts ## Ready to Protect Your Sensitive Cloud Assets? ## How it Works with AccuKnox? ### Discover Automatically map communication patterns between services and pods. ### Generate Create precise NetworkPolicies based on observed patterns. ### Enforce Apply policies with immediate effect and real-time monitoring. ### Validate Confirm policy effectiveness and maintain compliance. ## Resources ### Achieving Zero Trust Cloud Security with Micro-Segmentation [Read Blog](/blog/micro-segmentation) ### Network Segmentation Use Case [Go to Help Doc](https://help.accuknox.com/use-cases/network-segmentation/) ### AccuKnox Runtime Security [Learn More](/platform/runtime-security) ## AccuKnox is the top rated Zero Trust CNAPP - Support for Public Clouds (AWS, Azure, GCP and Oracle) and Private Clouds (OpenShift, VMWare Tanzu). - Secures modern workloads (Kubernetes) and legacy workloads (Virtual Machine, Bare Metal). - OpenSource led and we are DevSecOps, Shift-left driven - Provides Static Security, Run-time Security, Application and Network Firewalling. - Supports SIEM and SOAR integration, ticketing systems like Jira, ServiceNow, Slack, PagerDuty, etc. Get a LIVE Tour ## Ready For A Personalized Security Assessment? “Choosing AccuKnox was driven by opensource KubeArmor’s novel use of eBPF and LSM technologies, delivering runtime security” Golan Ben-Oni Chief Information Officer “At Prudent, we advocate for a comprehensive end-to-end methodology in application and cloud security. AccuKnox excelled in all areas in our in depth evaluation.” Manoj Kern CIO “Tible is committed to delivering comprehensive security, compliance, and governance for all of its stakeholders.” Merijn Boom Managing Director ## Trusted by Cybersecurity Leading Investors [10+PatentsRegistered with United States Patent & Trademark Office](/patents) [2M+ Downloads 1,000+](https://github.com/kubearmor/KubeArmor) [5Books Published](https://www.amazon.in/stores/author/B0D2N6G51V/allbooks) ## $15m Seed Funding Featured Customers Awards & Recognitions Investors ## About Us AccuKnox delivers a Zero Trust Security platform for AI, API, Application, Cloud, and Supply Chain Security. Incubated out of R&D innovator, SRI International (Stanford Research Institute), AccuKnox holds seminal Zero Trust security patents and is backed by top-tier investors including National Grid Partners, Dolby Family Ventures, Dreamit Ventures, Avanta Ventures, and the 5G Open Innovation Lab. ## Microsegmentation FAQs 1 **What is network microsegmentation in Kubernetes, and why is it important?** Network microsegmentation isolates workloads using network policies, preventing unauthorized lateral movement and reducing the attack surface. For example, it ensures only the WordPress frontend can communicate with the MySQL database, blocking unauthorized access. 2 **How does AccuKnox implement network microsegmentation?** AccuKnox CWPP discovers workload behavior, generates least-privilege network policies, and enforces them using Kubernetes-native controls. This ensures, for example, MySQL only accepts requests from the WordPress frontend while blocking unauthorized traffic. 3 **Can microsegmentation prevent lateral movement in Kubernetes clusters?** Yes, it restricts unauthorized east-west traffic, preventing attackers from moving between pods. If a pod is compromised, strict policies block access to sensitive resources like databases, stopping further exploitation. 4 **How are Kubernetes network policies different from firewall rules?** Kubernetes network policies control pod-to-pod communication based on labels, while firewalls manage broader IP-level access. This allows fine-grained controls, like restricting backend access to only the frontend service. 5 **How does AccuKnox automate network policy discovery?** AccuKnox analyzes traffic, detects communication patterns, and auto-generates policies. This automates security, ensuring only legitimate traffic flows between services—such as an API server accepting requests only from an authorized frontend.