What is one of the security measures that may be used for access to SCIFs during business hours?

Access to Sensitive Compartmented Information Facilities (SCIFs) requires stringent security measures to protect classified information. One effective security measure is the use of cipher locks. Cipher locks operate on a keyless entry system that typically requires users to input a specific code or combination of numbers to gain access. This system enhances security since it eliminates the risk associated with lost or stolen keys while allowing for easy code changes if access needs to be modified.

Cipher locks can be programmed to record entry and exit times, creating an access log that enhances security further. These locks are well-suited for SCIFs as they offer a reliable barrier against unauthorized access while allowing quick entry for authorized personnel during business hours, thus maintaining a balance between security and accessibility.

While biometric scanners, keypad locks, and card access systems are all viable security measures, cipher locks stand out in this context for their unique advantages, particularly in environments where quick adjustments and audit capabilities are necessary.