Explanation
According to the PCI Card Production Logical Security Requirements, a vendor's HSA access must be enforced by a security turnstile that has a logical access-control system that ensures anti pass-back. This means that the system must prevent a person from using the same badge to enter or exit the HSA more than once without completing the access cycle. The access cycle is the process of entering or exiting the HSA through the turnstile, which may involve biometric verification, PIN entry, or other authentication methods. The status of the access must change upon initial presentation of an authorised badge, prior to completion of the access cycle, to prevent another person from using the same badge to enter or exit the HSA. For example, if a person presents an authorised badge to enter the HSA, the system must register that the badge is inside the HSA and deny access to anyone else who tries to use the same badge until the person exits the HSA with the same badge. References: PCI Card Production Logical Security Requirements, v2.0, April 2019, page 12