“Brainiac hacker Samy Kamkar has developed a US$10 gadget that can predict and store hundreds of American Express credit cards and use them for wireless transactions, even at non-wireless payment terminals.”

More information can be found here: http://www.theregister.co.uk/2015/11/25/kamkar_credit_card/

Multiple banks say they have identified a pattern of credit and debit card fraud suggesting that several Staples Inc. office supply locations in the Northeastern United States are currently dealing with a data breach. Staples says it is investigating “a potential issue” and has contacted law enforcement.

According to more than a half-dozen sources at banks operating on the East Coast, it appears likely that fraudsters have succeeded in stealing customer card data from some subset of Staples locations, including seven Staples stores in Pennsylvania, at least three in New York City, and another in New Jersey.

More: http://krebsonsecurity.com/2014/10/banks-credit-card-breach-at-staples-stores/