Piggybacking
Course: AP® Cybersecurity Shows up in: Unit 2: Securing Spaces
A physical attack where the adversary uses social engineering to get an authorized person to let them into a restricted area.
Appears in the course and exam description (CED): 2.2.A.22.4.C.3
Why it matters in Unit 2
The victim knowingly opens the door, which is why training says never badge others in.
Example
An adversary carrying a heavy box waits for someone to hold the door.
Learn it properly, with a checkpoint 2.2 Physical Vulnerabilities and Attacks