Security Foundations, Risk, and a Safe Lab

Explain how confidentiality, integrity, and availability apply to a backend-service scenario.

Classify examples as assets, threats, vulnerabilities, exploits, risks, or controls.

Classify security controls by function and implementation type.

Mark assets, data flows, entry points, and trust boundaries on a simple architecture diagram.

Rate a security risk using defined likelihood and impact criteria.

Write rules of engagement that establish legal and ethical boundaries for an authorized lab exercise.

Configure an isolated network and a recoverable snapshot for a provided virtual-machine lab, then verify isolation and restoration.