Researchers at the University of Cambridge in the UK have demonstrated how a chip-and-PIN terminal used to authenticate credit and debit card transactions in that country can be compromised to steal sensitive data. Researchers opened up one of the supposedly tamperproof terminals, replaced its internal hardware with their own, put it back together without any external evidence of tampering and then got the machine to play Tetris. Such tampering might be possible in a laboratory setting, but it is not a realistic threat to retailers, an APACS spokeswoman says.”]
Source: https://www.csoonline.com/article/2121724/researchers-demonstrate-british-atm-hacks.html