Visa, Mastercard and Discover warn that details of credit card holders’ personal information could be at risk after a security breach.

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US credit firms in breach warning

Brazzers says no credit card information was leaked.

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Hacker Takes Down Porn Site

Stratfor says it could take more than a week to restore its website, adding that it is paying for credit card protection for affected members.

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Hacked think tank stays offline

Hackers targeted Stratfor, a global intelligence company, but it was unclear Sunday evening whether the breach and apparent release of credit card information was the work of the group Anonymous.

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Hackers target global think tank

Activist hacker group Anonymous says it has stolen thousands of emails, passwords and credit card details from US-based security firm Stratfor.

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Hackers hit US security company

Client list, credit card data posted.

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Security Think Tank Hacked

HONG KONG — Hackers stole account information of more than 360,000 of Citigroup Inc.’s U.S. credit card customers in a recent data breach, the bank said Wednesday, almost double the number initially thought. Citi said last week that about 1 percent of its credit card customers had account information hacked online but did not say exactly how many. The actual number of customers affected was thought to be about 200,000, based on Citi’s 2010 annual report, which said the company had roughly 21 million North American credit card customers. Read full article > >

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Citigroup says hackers stole account information of 360,000 customers in recent data breach

If a handful of companies refused to authorize online credit card payments for spam-advertised products, the money supporting the system would be cut off, a researcher said.

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Study Sees Way to Win Spam Fight

A growing number of people are paying rent or mortgages with money borrowed on a credit card, the charity Shelter says.

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Warning over bills paid on credit

A man admits his part in a £500,000 fraud in which he used stolen credit card details to buy his own songs on iTunes and Amazon.

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Man admits role in iTunes fraud

Online shoppers are being warned to watch out for a new scam using systems designed to look like those used by credit card providers to get personal information.

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Online security scam revealed