Resilience
Course: AP® Cybersecurity Shows up in: Unit 2: Securing Spaces
Staying protected after a single control fails: a second layer still stops the attack or limits what it can damage.
Appears in the course and exam description (CED): 2.1.G.32.1.G.4
Why it matters in Unit 2
Resilience is why defense in depth uses several layers: human, physical, network, device, application and data.
Example
Phishing steals a password, but multifactor authentication (MFA) still stops the login.
Learn it properly, with a checkpoint 2.1 Cyber Foundations