An attacker gained physical access to an internal computer to access company proprietary data. The facility is protected

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An attacker gained physical access to an internal computer to access company proprietary data. The facility is protected by a fingerprint biometric system that records both failed and successful entry attempts. No failures were logged during the time periods of the recent breach. The account used when the attacker entered the facility shortly before each incident belongs to an employee who was out of the area. With respect to the biometric entry system, which of the following actions will help mitigate unauthorized physical access to the facility?

A. Try raising the Crossover Error Rate (CER)
B. Try to lower the False Accept Rate (FAR)
C. Try setting the Equal Error Rate (EER) to zero
D. Try to set a lower False Reject Rate (FRR)