The Federal Bureau of Investigation has issued a denial of responsibility regarding the leak of more than 1,000,000 iOS UDID numbers last night.
In a statement issued in the past hour:
The FBI is aware of published reports alleging that an FBI laptop was compromised and private data regarding Apple UDIDs was exposed. At this time there is no evidence indicating that an FBI laptop was compromised or that the FBI either sought or obtained this data.
The statement is not a blanket denial that the information did not come from the FBI, but instead says there "is no evidence" that a laptop was compromised or that the FBI sought or obtained the UDIDs.