Garrett: Wifi deauthentication attacks and home security

Matthew Garrett worksout how to avoid being recorded by "Ring" door cameras in his apartmentbuilding. "The most interesting one here is the deauthenticationframe that access points can use to tell clients that they're no longerwelcome. These can be sent for a variety of reasons, including resourceexhaustion or authentication failure. And, by default, they're entirelyunprotected. Anyone can inject such a frame into your network and causeclients to believe they're no longer authorised to use the network, atwhich point they'll have to go through a new authentication cycle - andwhile they're doing that, they're not able to send any otherpackets."