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CompTIA Security+ study material · question 310 of 611

Users complain that a fingerprint reader rejects them too often, so the sensitivity is lowered. What is the security consequence?

  1. Enrolment must be repeated for all users
  2. The crossover error rate becomes undefined
  3. The false acceptance rate rises
  4. The false rejection rate rises
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Answer: C. The false acceptance rate rises

The two rates move in opposite directions, so tuning the sensor is a security decision rather than a usability one.

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