Tens of thousands of credit card details stolen

Between 40,000 and 50,000 holders of MasterCard and Visa credit cards may be at risk from the theft of 40 million credit card details from a US processor. Anyone who used their credit card in the US, or bought online from US-based websites, may be at risk. National Australia Bank and ANZ detected the risks in January. But it was not until last weekend that US authorities tracked the original security breach to an Arizona-based systems company that processes transactions for US banks.