'Anonymous' hackers target US security think tank

Anonymous boasted of stealing Stratfor's confidential client list, which includes a range of entities from banks to Apple the U.S. Air Force to the Miami Police Department, and mining it for more than 4,000 credit card numbers, passwords and home addresses.

"The Air Force will continue to monitor the situation and, as always, take apporpriate action as necessary to protect Air Force networks and information," he said in an email.

Wishing everyone a "Merry LulzXMas" — a nod to its spinoff hacking group Lulz Security — Anonymous as well posted a link on Twitter to a site containing the email, phone number and credit number of a U.S. Homeland Security employee.