Forum Systems Sentry vs Plexicus Container Security: Side-by-Side Comparison (2026)

Forum Systems Sentry

Teams deploying Docker microservices in multi-tenant or compliance-heavy environments should pick Forum Systems Sentry for its Zero Trust enforcement at the node level, which blocks lateral movement without requiring application code changes. The tool covers all four NIST CSF 2.0 foundational functions (Identity Management, Platform Security, Infrastructure Resilience, and Continuous Monitoring), with particular strength in PR.AA access control and east-west traffic isolation. Skip this if your infrastructure is primarily Kubernetes-native; Sentry's Docker-centric design means you'll outgrow it as you scale beyond containerized microservices into orchestrated clusters.

Plexicus Container Security

Teams building containerized applications on tight budgets should evaluate Plexicus Container Security for its runtime threat detection and automated response capabilities, which catch post-deployment attacks that image scanning alone misses. The platform covers the full shift-left-to-runtime arc with hardcoded secrets detection, CVE scanning, Kubernetes policy enforcement, and continuous monitoring, mapping to NIST ID.RA and DE.CM functions most buyers actually need. Skip this if you're looking for a broader CNAPP that handles cloud infrastructure or VMs; Plexicus stays focused on containers and Kubernetes, which is exactly why smaller teams without dedicated platform security engineers will move faster with it.