Disassociation/Deauthentication

An attacker can force wireless clients to deauthenticate from legit APs or routers. This DoS condition can be used to then force users to connect to an evil twin.

In order to connect to a wireless AP, the client must know the Service Set Identifier (SSID). Lots of organisations configure their APs to not broadcast the SSID, however, if you sniff on a wireless network for long enough, eventually you will find a client trying to associate with the AP.