I don't know how true it is but I would love to think it is, a friend posted on FB that he had gotten one of those calls, he's a programmer running a linux setup, so he quickly banged together a virtual windows machine in a sandbox environment and played along with the call, as soon as the scammers connected to his fake machine he started backtracing the connection and about fifteen minutes into this guy "fixing" his "windows computer" he pushed the button and shut down the scammers entire call center network, lol.