Maybe the entire ATM universe needs a refit!
Sounds to me like a Raspberry Pi can probably do the trick. Night need a USB hub to connect the cash dispenser touchscreen, and keypad. After that, a nice version of software would work nicely. Then add tamper switches that require a proper USB key to confirm proper access. If not inserted in a certain time things might not work correctly until things are more validated.
The software CAN'T be that hard. If they make it open source, it might be peer reviewed and be even better.
Like "military intelligence", "windows embedded" is a true oxymoron!
Biting the hand that feeds IT
