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.
The argument is most vulnerable to the objection that it fails to
【选项】
identify any alternative method of stopping hackers that could be used instead of the method it rejects
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