At the outside break area, an employee, Ann, asked another employee to let her into the building because her
badge is missing. Which of the following does this describe?

A.
Shoulder surfing

B.
Tailgating

C.
Whaling

D.
Impersonation

Explanation:
Although Ann is an employee and therefore authorized to enter the building, she does not have her badge and
therefore strictly she should not be allowed to enter the building.
Just as a driver can tailgate another driver’s car by following too closely, in the security sense, tailgating means
to compromise physical security by following somebody through a door meant to keep out intruders. Tailgating
is actually a form of social engineering, whereby someone who is not authorized to enter a particular area doesso by following closely behind someone who is authorized.