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ChewBacca’ Hackers Targeted Retailers in 11 Countries

A cybercriminal ring targeting small retailers in 11 countries stole data on 49,000 payment cards using a malicious software known as "ChewBacca" before the operation was shut down, according to a cybersecurity research firm.

RSA FirstWatch disclosed the attacks on Thursday on its website. It said the firm's researchers uncovered the ring, whose victims included small companies in the United States, Russia, Canada and Australia.

The hackers managed to steal details from some 24 million payment card transactions over about two months, according to RSA.

The report comes as the Secret Service investigates a major data breach at Target Corp. that resulted in the theft of some 40 million payment card numbers, plus other data from some 70 million customers, along with a smaller breach at luxury department store Neiman Marcus. Arts and crafts retailer Michaels has said it is investigating a possible breach and the FBI has warned retailers to expect more attacks.

The findings from RSA show that the recent spate of attacks extend outside the United States.

"The end game is to gain credit card information, so the hackers are going to go wherever it is easiest to get that information," said Will Gragido, senior manager with RSA FirstWatch, the threat research arm of RSA Security.

He said his firm provided the FBI with data on the "ChewBacca" operation, including the location of a command-and-control server used by the hackers on Wednesday.

That server was shut down on Thursday, according to Gragido.

— Reuters