In devices with biometrics enabled, the device must be in which state for access to be granted?

• A. Before first unlock
• B. After first unlock
• C. During boot
• D. While locked

Answer: (B)

Biometric access is designed to unlock protected data only after the device has established a trusted, authenticated session. In practice, that means you must have unlocked the device at least once (typically with a password or PIN) before biometric verification can grant access to keys or secure resources. Once you’ve unlocked it once, biometrics can be used for subsequent unlocks, making access faster.

So the correct state is after the first unlock because the secure system requires an initial, explicit authentication to release the cryptographic keys or credentials used by biometrics.

The other options don’t fit because before the first unlock there’s no authenticated session to release secure keys; during boot the system isn’t yet ready to grant biometric access; and while the device is locked, biometric input is used to initiate an unlock rather than serving as the baseline state for granting access.