Earlier today, hacker collective AntiSec released a file with over one million iOS unique device identifiers (UDID). Furthermore, the group claimed it harvested a total of some 12 million UDIDs from an FBI laptop, raising questions as to why the FBI had that data in the first place — but now the FBI is teling its side of the story. In a statement to All Things D the FBI says, "at this time, there is no evidence indicating that an FBI laptop was compromised."
The FBI also noted that there was no reason to believe that the agency "either sought or obtained this data" — it sounds like the agency is trying to allay fears that the government was keeping tabs on Apple users. Along with the UDID, AntiSec claimed to have personal data such as cell phone numbers and full names, but there's still no evidence that the group has such information. Despite the FBI's denial, it does appear that the one million UDIDs that AntiSec did release are legitimate, so the question is how this data became publicly available to begin with.