Which term describes the practice of following someone through a secured door without authorization?

Which term describes the practice of following someone through a secured door without authorization?

• A. Piggy Backing
• B. Tailgating
• C. Propping
• D. Entry bypassing

Answer: (A)

This question tests an access-control breach that hinges on human behavior. Piggybacking describes the scenario where an unauthorized person slips through a secured door by riding along with someone who does have permission. The authorized individual may hold the door, say “go ahead,” or otherwise facilitate the passage, effectively granting entry without proper credentials. That dynamic—one person leveraging another’s legitimate access to pass through—is exactly what piggybacking captures. Tailgating is a related idea and often heard in security talks, but this wording emphasizes the act of the authorized person facilitating the entry, which piggybacking highlights. Propping focuses on leaving a door open on purpose, which is a contributing behavior but not the same as following someone through. Entry bypassing is too general and doesn’t single out the social-into-physical-entry mechanism.

This question tests an access-control breach that hinges on human behavior. Piggybacking describes the scenario where an unauthorized person slips through a secured door by riding along with someone who does have permission. The authorized individual may hold the door, say “go ahead,” or otherwise facilitate the passage, effectively granting entry without proper credentials. That dynamic—one person leveraging another’s legitimate access to pass through—is exactly what piggybacking captures.

Tailgating is a related idea and often heard in security talks, but this wording emphasizes the act of the authorized person facilitating the entry, which piggybacking highlights. Propping focuses on leaving a door open on purpose, which is a contributing behavior but not the same as following someone through. Entry bypassing is too general and doesn’t single out the social-into-physical-entry mechanism.