You may have never heard of Harbortouch Security, but the chances are very good that your credit card has danced at least once with them. The company provides point-of-sale (POS) systems (aka, “those newfangled cash registers”) to around 150,000 businesses, mostly restaurants and bars. When several banks discovered breaches in at least 4,200 of their customers’ accounts, they started to suspect that the credit card processing company had been compromised.

Malware in Point-of-Sale Systems