Via Boing Boing:
It seems like it’s pretty much impossible to trust an ATM when you’re travelling internationally, but obviously you don’t want to carry a tonne of cash with you either. One suggestion – that should help you avoid the Bluetooth-enabled skimmers, at least – is to use your phone to scan for Bluetooth devices when you’re at the ATM you want to use. If you see any devices that don’t belong to you, don’t use the ATM.
It’s not convenient – and it means having your phone out in public, which may pose other risks – but the added security for your bank account is probably worth it.