Security Operations Stack (Trivy, Falco, OPA, Vault, Snyk) overview

A defense-in-depth security toolchain for cloud-native environments covering vulnerability scanning, runtime threat detection, policy enforcement, and secrets management. Trivy scans container images, filesystems, and IaC templates for known vulnerabilities and misconfigurations. Falco monitors Linux kernel syscalls at runtime to detect anomalous behavior — container escapes, unexpected network connections, and privilege escalations. OPA (Open Policy Agent) enforces admission control policies on Kubernetes resources and API requests using Rego rules. Vault manages secrets, certificates, and dynamic credentials with automatic rotation. Snyk integrates into CI pipelines for dependency vulnerability analysis and license compliance. Go and Python are the primary languages for custom policy engines and automation scripts. This stack suits security teams responsible for container and Kubernetes environments.