What is Wi-Fi deauthentication attack?
[[File:Deauth attack sequence diagram.svg|thumb|494x494px|[[Sequence diagram]] showing a Wifi deauthentication attack. ]] A '''Wi-Fi deauthenticatoon attack''' is a kind of [[Denial-of-Service attack|denial of service attack]] that can be used in certain [[Wireless network|wireless networks]]. In a Wi-Fi network, devices such as [[Computer|computers]] communicate with a [[wireless access point]]. To get an [[iP address]], each devices needs to be [[Authentication|authenticated]], so the access point knows the device. In this context, there also is a frame (or a command) that tells a device that it is no longer authenticated. As the protocol does not require these frames to be [[Encryption|encrypted]], an attacker can simply send such a command to deconnect a device. The attacker only needs to know the [[MAC address]] of the victim. This address is sent unencrypted with each frame. {{tech-stub}} [[Category:Computer networking]]