An anonymous reader writes “Citibank is reissuing ATM cards following a December server breach in which hackers stole customer PIN codes, Wired reports. Citibank is reissuing ATM cards following a December server breach in which hackers stole customer PIN codes . Three months had passed since Citibank notified the FBI that a hacker managed to steal customer-account numbers and PIN codes, in an attack on a server that processes transactions from Citi-branded ATMs at 7-Eleven convenience stores. On this type of card, the magnetic strip is replaced by a microcontroller with various cryptographic features (aka smart card) that are supposed to secure transactions and make the card a PITA to clone. My bank has refunded fraudulent debit card purchases for me twice, and the money was back in my account within an hour or so, but I worry about the time that I don’t check it for a couple days and the money isn’t there when I need it. read more