The gang targeted freestanding cash dispensers and would tap the phone line between the ATM and a wall socket by placing a two-way adaptor on it and connecting an MP3 player, according to the newspaper.
The digital music device would record the data traffic, which sounds like the noise a traditional computer modem makes when connecting. The noise would be interpreted using a modem line tap or passed through a special computer software program.
Gang hacks ATMs with MP3 player
Posted on Monday, Nov 20 2006 @ 13:10 CET by LSDsmurf
CNET writes about a British gang that used an MP3 player to hack ATMs and creatie copies of credit cards: