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February 10, 2017 12:00 am

Arby's Probes Possible Data Breach Affecting 355,000 Credit Cards

Brian Krebs is reporting that Arby's "recently remediated a breach involving malicious software installed on payment card systems at hundreds of its restaurant locations nationwide." The breach is said to only affect some corporate stores and not franchised restaurant locations. While there is no exact number of those affected, it's possible that more than 355,000 credit and debit cards issued by PCSU members banks may have been compromised. Krebs On Security reports: The first clues about a possible breach at the sandwich chain came in a non-public alert issued by PSCU, a service organization that serves more than 800 credit unions. The alert sent to PSCU member banks advised that PSCU had just received very long lists of compromised card numbers from both Visa and MasterCard. The alerts stated that a breach at an unnamed retailer compromised more than 355,000 credit and debit cards issued by PCSU member banks. Arby's declined to say how long the malware was thought to have stolen credit and debit card data from infected corporate payment systems. But the PSCU notice said the breach is estimated to have occurred between Oct. 25, 2016 and January 19, 2017. Such a large alert from the card associations is generally a sign of a sizable nationwide breach, as this is likely just the first of many alerts Visa and MasterCard will send to card-issuing banks regarding accounts that were compromised in the intrusion. If history is any lesson, some financial institutions will respond by re-issuing thousands of customer cards, while other (likely larger) institutions will focus on managing fraud losses on the compromised cards.

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