Over a thousand major enterprise networks and small and medium businesses in the U.S. have been compromised by a recently discovered malware package called “Backoff” and are probably unaware of it, the U.S. Department of Homeland Security (DHS) said in a cybersecurity alert on Friday.
Backoff first appeared in October 2013 and is capable of scraping the memory contents of point of sales systems—industry speak for cash registers and other terminals used at store checkouts—for data swiped from credit cards, from monitoring the keyboard and logging keystrokes, from communicating with a remote server.
“Over the past year, the Secret Service has responded to network intrusions at numerous businesses throughout the United States that have been impacted by the “Backoff” malware,” the alert said. “Seven PoS system providers/vendors have confirmed that they have had multiple clients affected.”
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