The AntiSec hacker groups claims that it has revealed more than 12 million Apple Unique Device IDs along with other personal info of device owners.

Just not words, the hacker group showed what they just did by releasing 1,000,001 UDIDs to public.

The release showed on Pastebin shows detail of how they obtained ID from FBI.

AntiSec claims:

During the second week of March 2012, a Dell Vostro notebook, used by Supervisor Special Agent Christopher K. Stangl from FBI Regional Cyber Action Team and New York FBI Office Evidence Response Team was breached using the AtomicReferenceArray vulnerability on Java, during the shell session some files were downloaded from his Desktop folder one of them with the name of ‘NCFTA_iOS_devices_intel.csv’ turned to be a list of 12,367,232 Apple iOS devices including Unique Device Identifiers (UDID), user names, name of device, type of device, Apple Push Notification Service tokens, zip codes, cell phone numbers, addresses, etc,”

They claimed that source of leak is FBI by the means of announcement to public via tweet, “12,000,000 identified and tracked iOS devices. thanks FBI SSA Christopher Stangl. #AntiSec

Basically they hacked UDIDs from FBI which revealed users personal info. UDID: Apple Device users.

However, for better protection Apple has recently rejecting apps that access UDIDs due to privacy issues. This study from 2010 claims the UDID creates a “tempting opportunity for use as a tracking agent or to correlate with other personally-identifiable information in unintended ways.”

However, hackers didn’t leaked much more than that but they claim they also have real names, addresses and cell phones.