Which type of control is being implemented when a biometric access device is installed at...

A biometric access device installed at the entrance to a facility is a type of preventive control. Preventive controls are designed to deter or prevent undesirable events from occurring12. They are proactive measures that aim to inhibit incidents before they happen12. In this case, the biometric access device prevents unauthorized individuals from gaining access to the facility by requiring unique biological characteristics for authentication12.