Container & Workload Security

What it is

Container and workload security covers the full lifecycle of a containerized application — the image it's built from, what it does at runtime, and how well it's isolated from other workloads.

Key points

• Image scanning: checking container images for known vulnerabilities in base images and dependencies before deployment — catches a large share of risk before a container ever runs.
• Least-privilege runtime: containers should run as non-root, with a read-only filesystem and dropped Linux capabilities where possible — reduces what an attacker can do even if the application itself is compromised.
• Network policies: in Kubernetes, controlling which pods can talk to which other pods — without them, any compromised pod can reach anything else in the cluster by default.
• Runtime security monitoring detects anomalous behavior in a running container (unexpected process execution, unexpected network connections) — a defense layer for threats that image scanning, which only checks known vulnerabilities, wouldn't catch.