MasterCard introduces ‘Tamper-Resistant’ chip technology. DPA is a tool that allows extraction of secret keys to compromise the security of smart cards and other cryptographic devices by analyzing their power consumption. The technique involves the analysis of the measurements of how much electrical power a chip is consuming as it operates, to figure out what the cryptographic keys are. The news comes after several big data breaches have hit consumers, banks and credit card companies, including Hannaford Bros., Heartland Payment Systems and RBS WorldPay.”]