When network scans reveal exposed services, the gap between detection and enforcement is where risk grows. Nmap finds the ports. Open Policy Agent (OPA) enforces the rules. Together, they close that gap before it becomes a breach.
Nmap is the industry standard for scanning IP ranges, identifying services, and mapping attack surfaces. Skilled security teams use it to audit networks, validate segmentation, and catch drift from intended configurations. But Nmap alone only observes. It does not decide.
Open Policy Agent is a general-purpose policy engine. Written in Rego, its rules define what is allowed or denied across infrastructure, APIs, and microservices. OPA evaluates input against policy and returns a decision. It integrates with Kubernetes, CI/CD, and service meshes. It treats policy as code — tested, versioned, and deployed like software.
By integrating Nmap with OPA, you can automate security posture enforcement. Scan results feed into OPA as structured data. Policies assert which ports, protocols, or hosts are permitted. Ports outside policy trigger alerts, quarantines, or orchestration-level changes. This moves from “scan and review” to “scan, decide, act.”