The average text-format computer password is highly effective at stopping casual attempts by hackers to break into a critical, secured computer systems but can be hacked within a few minutes by a powerful computer permitted to make repeated remote login attempts. No critical, secured computer system can afford to be defended by a measure that will last as little time as a few minutes. Biometric authentication, on the other hand, has no vulnerability to remote repeated login attempts. Clearly, therefore, for critical, secured computer systems, the average text-format computer password can play no part in effectively stopping hacking attempts.
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