A company's primary security measure for their sensitive server room is a biometric access control system. Due to a recent natural disaster, the biometric system is temporarily unavailable. Which of the following would be the BEST compensating control to implement immediately to ensure that only authorized personnel can access the server room while maintaining a similar level of security?
Implement a sign-in/out log that is monitored by a security guard.
Disable access to the server room until the system is repaired.
Set up a temporary key code lock on the server room door.
Replace the biometric system with a standard key lock.
CCTV