use Perl

So far, investigators have found hundreds of machines in at least five countries: Britain, Ireland, Belgium, the Netherlands and Denmark. They have turned up at European grocery chains including Asda, which is owned by Wal-Mart; Tesco; and J Sainsbury PLC, according to the person close to British law enforcement.

Iiiiiiinteresting. So even large reputable supermarkets can end up with pre-pwned chip and pin machines that save and steal your PIN (and everything else), for someone to later use in a way which it's very hard for you to prove it was not you. The level of sophistication and investment for this attack is scary impressive. I wonder if the criminals figured out the plan independently of these security researchers.