The activist hacker group Anonymous said it has hacked the website of the US-based security think tank Strategic Forecasting (Stratfor).
Stratfor’s chief executive George Friedman confirmed that the site had been the victim of a hack attack.
Credit card details, home addresses and some other personal details of its 4,000 subscribers were made public on a website named Pastebin, according to Stratfor.
The company stated in an email that as a result of this incident the operation of its servers and email had been suspended.
Anonymous hacktivists, who had been reportedly responsible for attacking the websites of companies and institutions that opposed WikiLeaks and its founder Julian Assange, claimed they were able to attack Stratfor’s website as the company did not encrypt it.
Stratfor in a statement said it was "working closely with law enforcement in their investigation and will assist them with the identification of the individual(s) who are responsible."