5G IR playbook fundamentals

The PICERL IR Lifecycle

The PICERL model (SANS-defined) structures incident response into six phases. Prepare: build and maintain playbooks, train teams, establish communication channels, ensure tools are ready. Done before incidents. Identify: detect and confirm an incident is occurring. Often initiated by alerts, hunt findings, or external reports. Contain: stop ongoing damage by isolating affected components — without making the situation worse. Eradicate: remove the adversary's foothold — revoke credentials, redeploy compromised components, patch exploited vulnerabilities. Recover: restore normal operations from…