Tamperproof, yet playing Tetris.

[Perry E. Metzger]

Handheld "Chip & Pin" terminals for reading credit cards in the UK are
required to be tamperproof to avoid the possibility of people
suborning them. Here is a report from a group that has not merely
tampered with such a terminal, but has (as a demo) converted it into a
tetris game to demonstrate that they can make it do whatever they
like.

http://www.lightbluetouchpaper.org/2006/12/24/chip-pin-terminal-playing-tetris/

Perry

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