WEP is secure right? Not so fast. Just because you made and know the password means nothing. WEP is NON-PCI Enterprise Compliant.
Wired Equivalent Privacy (WEP) is a weak security algorithm for IEEE 802.11 wireless networks. Introduced as part of the original 802.11 standard ratified in September 1999, its intention was to provide data confidentiality comparable to that of a traditional wired network. WEP, recognizable by the key of 26 or 58 hexadecimal digits, is widely in use and is often the first security choice presented to users by router configuration tools.
Although its name implies that it is as secure as a wired connection, WEP has been demonstrated to have numerous flaws and has been deprecated in favor of newer standards. In 2003 the Wi-Fi Alliance announced that WEP had been superseded by a higher Wi-Fi standard. In 2004, with the ratification of the full 802.11i standard, the IEEE declared that both WEP-40/64/104/128 "have been deprecated as they fail to meet their security goals".
The algorithm WEP probably should have been done away with years ago, however, many products still in use, such as inventory scanners, are still going strong, and no-where near failure, and still must be supported. Extensive network engineering should be considered and implemented.