Wi-Fi Protected Setup (WPS) is a legacy router feature with a critical security flaw: its 8-digit PIN is split into two independently guessable parts, reducing brute-force attempts from 100 million to just 11,000. This vulnerability was demonstrated in 2011 and takes under an hour to exploit. Despite this, WPS remains enabled by default on many modern routers, especially those running WPA2/WPA3 mixed mode for older device compatibility. Both the PIN and physical button methods are insecure. Users should immediately disable WPS in router settings, along with UPnP, WAN remote administration, and default credentials.

6m read timeFrom xda-developers.com
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WPS was always meant for convenience, not securityEven modern routers can have it enabled by defaultDisabling WPS is Wi-Fi security 101
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