What type of physical security solution should be implemented to prevent tailgating attacks?

An access control vestibule is designed specifically to mitigate the risk of tailgating attacks. By requiring individuals to enter their credentials to gain access to a secure area, this type of physical security solution enforces a one-at-a-time entry policy. When someone enters, the vestibule acts as a buffer zone, preventing others from entering without authorization. This setup ensures that the entry point is secured and helps in monitoring and controlling who enters the facility.

While security cameras can help in monitoring people and may deter some approach tactics, they do not directly prevent tailgating since they do not control access. A biometric scanner enhances security by allowing only authorized individuals to gain access; however, it may not stop someone from following an authorized user closely. Employing security guards can deter unauthorized access and monitor the entry points, but it relies on human vigilance and may not be as effective in real-time prevention as an access control vestibule. Each of these alternatives serves a role in security but does not specifically target the tailgating issue as effectively as an access control vestibule does.