Wi-Fi Protected Setup or WPS is a new method to connect wireless devices to the access points without physically entering the password. In a normal way, WPA/WPA2 are the new Wi-Fi security protocol used in both home and enterprise wireless networks. Even though it was much better than WPA network but the main vulnerability again struck via WPS exploit. The main difference between these two networks was use of a new algorithm called AES. But in 2006, WPA was officially replaced by WPA2. Although the exploit was not directly targeted towards the WPA algorithm but through Wi-Fi Protected Setup (WPS) which made it possible to get into the Wi-Fi networks easily. Despite those improvement WPA was vulnerable which was exploited by lot of penetration testers. The main change that WPA brought was to include integrity check which determined if an attacker was altering internet packets between the user and the access point. It was initiated in 2003 just a year before WEP was retired. WPA (Wi-Fi Protected Access) was the newer and secured security protocol for wireless network in replace to the older vulnerable WEP standard.
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