Final answer:
The practice of following an authorized person through an entrance without using a badge to defeat security is called tailgating.
Step-by-step explanation:
The practice of following an authorized person through an entrance without using a badge to defeat security is called tailgating.
Tailgating is a common security vulnerability in many organizations, where an individual gains unauthorized access by closely following someone with authorized access. It can be done intentionally or unintentionally, and it is important for organizations to have strict security measures in place to prevent tailgating.
For example, in an office building, if an employee swipes their access card to open the door and someone else quickly enters behind them without using their own access card, that is an instance of tailgating.