Modern routers temporarily lock out WPS authentication after a few failed attempts, rendering PIN guessing impossible.
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When checking a router's vulnerability, the software matches the router's hardware manufacturer signature against a database of known computational algorithms. If a match is found, it calculates the statistical probability of a default WPS PIN flaw. It then passes this PIN to the JumpStart utility to attempt a secure connection handshake. If the connection succeeds, it alerts the administrator that the router’s WPS feature must be immediately disabled to prevent external breaches. Step-by-Step Security Auditing Guide