![]() There are side-channel attacks to WPA and WPA2 though. With WPA and WPA2, that just means a lot of time. As with just about any cryptography, brute force will always win if given enough time. For these, an attacker would most likely monitor traffic for awhile and then take the data home for offline cracking. WPA and WPA2 require a good bit more computational power for outsiders to crack, and much more time. WEP security adds a slight barrier, but is still easily decipherable by even unauthenticated users. This includes usernames and passwords as well as web pages, documents, and other data sent or obtained via http, ftp, telnet, etc.įor open networks, gathering cleartext data is as easy as sniffing the traffic in the air. On any Wi-Fi network - encrypted or not, given today's Wi-Fi encryption protocols - any sufficiently skilled and equipped user of the network (and especially the network administrator) could easily access any data you transmit or receive via cleartext protocols. That said, the answer I've given there applies fairly well here. Is it possible to get all the data I send through wifi? There's a question very similar to this already, but not quite an exact duplicate.
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