A thief has hacked into the US based Creditcards.com to expose more than 55,000 credit card numbers on the Internet.
The suspect exposed the credit card numbers last week prior to later notifying the account holders of his crime, according to reports.
The thief managed to forge an email address -chad@microsoft .com - which he then used to rail against e-commerce companies and the lack of privacy they cause. The FBI confirmed that it is now looking into the case.
The Creditcards.com is the latest in a series of credit card frauds in the United States. Last September human error caused a glitch that allowed a hacker to copy the credit card information of around 15,700 customers from Western Union's Web site.