The breach at office supply chain Staple s impacted roughly 100 stores and was powered by some of the same criminal infrastructure seen in the intrusion disclosed earlier this year at Michaels craft stores, according to sources close to the investigation. Multiple banks interviewed by this author say they’ve received alerts from Visa and MasterCard about cards impacted in the breach at Staples, and that to date those alerts suggest that a subset of Staples stores were compromised between July and September 2014. Sources briefed on the ongoing investigation say it involved card-stealing malicious software that the intruders installed on cash registers at approximately 100 Staples locations.

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Link Found in Staples, Michaels Breaches