The hackers who recently stole credit card numbers from Citigroup managed to run up about $2.7 million in fraudulent charges.

"Citi acknowledged the breach earlier this month, saying hackers had accessed more than 360,000 Citi credit card accounts of U.S. customers," writes Computerworld's Robert McMillan.


"Until now, it wasn't clear how much -- if any -- fraud had occurred as a result of the theft," McMillan writes. "But Citi confirmed Friday that there were losses of $2.7 million from about 3,400 accounts. The bank has said its customers will not be liable for the losses."

Go to "Citigroup hackers made $2.7 million" to read the details.

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