WPA WPA2

WPA (Wi-Fi Protected Access)/WPA2 (Wi-Fi Protected Access II) are two Wi-Fi security protocols and security certification programs. They provide both security (you can control who connects) and privacy (the transmissions cannot be read by others) for communications as they travel across your network. WPA2 is newer, more secure and complex than WPA. Newer Wi-Fi devices (certified since 2006) support both the WPA and WPA2 security protocols. Devices that have older network cards may only work with WPA security.