You have been asked to help with a authentication problem th

You have been asked to help with a authentication problem that was reported after moving to biometric authentication. One of you company’s employees enrolled with a fingerprint reader and was able to authenticate for several weeks using the new system. Then, one day, the employee complained that after cutting his finger he could no longer authenticate and received a “Type 1” error. What is most likely the problem?

A. The system does not examine enough information to determine the user.

B. Fingerprint readers are not very good at handling type 1 errors by nature since these are very dynamic in nature.

C. Fingerprint readers are not very good at handling type 1 errors by nature since they have high cross-over error rates.

D. The system examines too much information and needs to be configured to be less sensitive.

Solution

Correct option is C.

Type 1 errors in any systems are basically false positives where a test result indicates worngly that a condition is present. The cross over error rates for finger prints sensors are generally high meaning that the ratio of false acceptance to false rejection is high there a higher chance of false positives.