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False Acceptance or False Positive

posted 18 May 2010, 05:00 by Kanav Gupta
This is when a system inaccurately identifies someone as someone else.  For example, imagine that Attacker Al steals Sally's laptop. The laptop has a fingerprint scanner for authentication with Sally's fingerprint.  Attacker Al tries his fingerprint and it works.  It accepts his fingerprint even though it shouldn't. It returns a positive match as though his fingerprint is the same as Sally's even though this is obviously false.