The rumor is that an Eva Longoria - Tony Parker sex tape was stolen. You supposedy have to subscribe to a site called "Celebrity Orgy" to see the video. (The Post Chronicle) So if it's real, it seems that profit was the motivation.
But I don't think that there's a real tape. My guess is that the rumor has something to do with the fake Eva Longoria sex tape on Funny or Die:
EVA LONGORIA SEX TAPE on FunnyOrDie.com
