Anonymous appears to have gained access to the teleconference by hacking into the email account of one of the attendees. An email entitled "Anon-Lulz International Coordination Call" containing the conference calls details has also been published on the Internet.
The call, it appears, was scheduled for Jan. 17, although the call audio was not released until Friday. The email was sent to more than 40 law enforcement officials in the U.S., U.K., Ireland, The Netherlands, France and Sweden, although only a small number of people can be heard on the conference call.
Although the names of some already known and arrested hackers are audible on the call, the uploaded bleeped out the names of some other hackers, who have not yet been arrested. Their "handles" are still audible on the tape, however.
The FBI and Scotland Yard have confirmed that both the internal conference call describing their investigation into various hackers and the email containing the conference call details were hacked.
With that, we know that Anonymous' claims are valid.
It's possible, as well, that Anonymous has been accessing authorities' secure email for some time. The organization Tweeted the following on Friday:
"The #FBI might be curious how we're able to continuously read their internal comms for some time now. #OpInfiltration"
Listen to the call below.