The first products certified to support Wi-Fi Protected Access 2, the latest wireless security technology, were announced by the Wi-Fi Alliance. The Wi-Fi Alliance says WPA2 is a big improvement on earlier wireless security standards, such as Wired Equivalent Privacy (WEP), which hackers have found easy to circumvent. It includes Advanced Encryption Standard, which supports 128-bit, 192-bit and 256-bit keys. Because WPA2 is compatible with WPA, companies that have already implemented WPA can upgrade to the new standard in stages.