The FBI has issued a statement denying the Apple user ID data published by hacker collective Anonymous was obtained from FBI computers.

AntiSec, an offshoot of Anonymous, had posted a statement online saying that they had managed to access the laptop of FBI Special Agent Christopher Stangl back in March, and that it contained over 12 million iPhone and iPad IDs.

Called UDIDs, the codes are a sequence of letters and numbers unique to each Apple product that includes personal information of the user such as name, phone numbers and addresses.

The group said it believed the FBI was using the Apple IDs to track people and has published over a million of these IDs online.

The FBI Press Office said on Twitter:

"Statement soon on reports that one of our laptops with personal info was hacked. We never had info in question. Bottom Line: TOTALLY FALSE"

One of the twitter accounts used by Anonymous responded by saying:

"You know you're doing something right if @FBIPressOffice throws caps at you on twitter to deny an #Anonymous statement."

They later added:

"Also, before you deny too much: Remember we're sitting on 3TB additional data. We have not even started. #funtimes #fff

With no concrete evidence the FBI hack took place, there's been speculation that the IDs could instead have been obtained from an app, that used UDIDs to identify users.

As of yet, AntiSec has not released any further information.

Written and presented by Alfred Joyner