How secure are WLANs?
Yes. Thanks to a military application origin, wireless technology was been designed with security provisions from the ground up, making many WLANs more secure than most wired LANs. The DSSS technology used in WLANs is extremely resistant to interference, jamming, corruption, and detection. In addition, each user can be issued a personal ID to prevent unauthorized access. Particularly sensitive data can be protected by activating Wired Equivalent Privacy (WEP), which further encrypts the signal and verifies data with an electronic security key. On top of that, 802.11b WLANs may use 40-bit and 128-bit encryption plus user authentication.