DroidSheep can capture sessions using the libpcap library and supports: OPEN Networks WEP encrypted networks WPA and WPA2 encrypted networks (PSK only)

There are many users that do not known that air is the transmission medium when using WiFi. Therefore information is not only transfered to its receiver but also to any other party in the network within the range of the radio waves.

Usually nothing special happens because the WiFi users discard packets that are not destined to themselves. DroidSheep does not do this. It reads all the packets looking at their contents.Is a website sending a clear recognition feature within a message’s content, which can identify a user (“SessionID”), then DroidSheep is able to read it although it is not intended to external users. Moreover DroidSheep can use this token to use it as its own. The server can’t decide whether the authorized user or DroidSheep has sent the request.