Some malware families targeting Point-of-Sale (POS) systems did not take a vacation this Thanksgiving, but instead were hard at work stealing payment card data, Proofpoint security researchers say.
Two PoS threats, ZeusPoS and NewPoSthings, showed a three to four-fold increase in data exfiltration traffic when compared to normal operation periods, the security researchers say. While it’s not uncommon to observe an increase in malicious traffic on Black Friday, this year’s numbers were significantly higher than previously seen.
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