The Japanese credit card unit of Citigroup recently stated that customers' personal data had been accessed.

"Eight weeks after a hacker cracked its credit card database, the company's credit card unit in Japan, Citi Card, reported in a message to its user base Aug. 5 that 'certain personal information of about 92,400 customers has allegedly been obtained and sold to a third party illegally," writes eWeek's Chris Preimesberger.

"This breach, however, apparently did not involve online hacking," Preimesberger writes. "Citigroup told police that a person involved in a company to which Citi Cards outsourced part of its business had illicitly obtained the information and sold it to a third party."

Go to "Citigroup Hit Again by Security Breach" to read the details.

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