Runtime Security
ELI5 — The Vibe Check
Runtime Security monitors your applications WHILE they're running. If a container suddenly starts mining crypto, opening unexpected network connections, or reading /etc/shadow — runtime security catches it. It's like security cameras inside your containers that watch for suspicious behavior.
Real Talk
Runtime security monitors running applications and containers for anomalous behavior using system call analysis, network monitoring, file integrity checking, and behavioral profiling. Tools like Falco, Tetragon, and KubeArmor detect and alert on policy violations in real-time at the kernel level.
When You'll Hear This
"Runtime security flagged a container making DNS queries to crypto mining pools." / "Falco alerts when any process in our cluster reads sensitive files unexpectedly."
Related Terms
Container Scanning
Container Scanning checks your Docker images for known vulnerabilities in OS packages, libraries, and misconfigurations.
Defense in Depth
Defense in Depth means layering multiple security measures so if one fails, others catch the threat.
Falco
Falco is a runtime security tool that watches system calls in your Kubernetes cluster.
Zero Trust
Zero Trust means 'never trust, always verify.' Even if you're inside the company network, you still have to prove who you are for every request.