"In December 2011, researcher Stefan Viehböck reported a design and implementation flaw that makes brute-force attacks against PIN-based WPS feasible to perform

"In December 2011, researcher Stefan Viehböck reported a design and implementation flaw that makes brute-force attacks against PIN-based WPS feasible to perform on WPS-enabled Wi-Fi networks. A successful attack on WPS allows unauthorized parties to gain access to the network. The only effective workaround is to disable WPS.[4]" - http://en.wikipedia.org/wiki/Wi-Fi_Protected_Setup#Security http://en.wikipedia.org/wiki/Wi-Fi_Protected_Setup#Security [4] http://www.kb.cert.org/vuls/id/723755 http://www.kb.cert.org/vuls/id/723755