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Cybercrime firm says U.S. merchants still under attack

BOSTON - Cyber security firm IntelCrawler said on Friday it has uncovered at least six ongoing attacks at merchants across the U.S. whose credit-card processing systems are infected with the same type of malicious software used to steal data from some 40 million credit cards at Target (TGT).

Andrew Komarov, the firm's chief executive, told Reuters that his firm has alerted law enforcement, Visa (V) and intelligence teams at several large banks about the findings.

Komarov said that retailers in California and New York were among those compromised with BlackPOS, the same malicious software used in the attack on Target. Their names could not immediately be confirmed.

A Visa spokeswoman said she could not immediately comment.

The report from disclosures from Target and upscale department store Neiman Marcus that resulted in the theft of payment cards and other customer data may only be the tip of the iceberg.

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