During a penetration test of a data center, one of your findings relates to the entrance security. The data center uses an access control system with badge readers, but you observed that it's possible for non-badge holders to tailgate behind authorized employees undetected. In the report, which remediation should be recommended to enhance physical security and prevent tailgating?
Suggest the deployment of an additional CCTV camera focused on the entrance to deter potential tailgate attempts.
Recommend implementing a mantrap to prevent multiple people from entering at the same time after a single authentication event.
Propose enhanced user training to make employees aware of tailgating threats without altering the physical control system.
Advise increasing the timeout period on the badge readers to allow more time for authorized users to pass through, thus reducing the likelihood of tailgating.