During a security audit, you discover that a supply closet containing spare hard drives has a door that can be opened with a standard paperclip. What is the most appropriate recommendation to address this vulnerability?
An electronic lock with a secure mechanism prevents bypass with simple tools like a paperclip.
Why this answer
Option C is correct because the vulnerability is a weak physical lock that can be bypassed with a simple tool. Upgrading to a tamper-resistant electronic lock, such as one with a keypad or biometric reader, significantly increases the difficulty of unauthorized entry. This directly addresses the core issue of inadequate access control for sensitive assets like spare hard drives.
Exam trap
CompTIA A+ often tests the distinction between deterrent controls (signs, cameras) and preventive controls (locks, access control systems), leading candidates to choose a visible but ineffective option like a warning sign instead of a technical fix.
How to eliminate wrong answers
Option A is wrong because replacing the door and installing a deadbolt is an over-engineered solution that does not specifically address the lock vulnerability; a deadbolt can still be picked or bypassed with a paperclip if the lock cylinder is weak. Option B is wrong because a privacy filter on the window only prevents visual observation, not physical access, and does nothing to secure the door lock. Option D is wrong because a warning sign is a deterrent, not a physical control; it does not prevent an attacker from using a paperclip to open the door.