WSJ reports that Daniel Spliter has pleaded guilty  to two felony charges related to the publishing of 120,000 AT&T customers’ email addresses on Gawker.com. In addition, one other member from the hacking group “Goatse Security”, Andrew Auernheimer, was charged as well.

A computer hacker admitted Thursday to writing code that was used to breach AT&T Inc.’s servers last year and gather email addresses and other personal information of about 120,000 users of Apple Inc.’s iPad.

Daniel Spitler, 26 years old, a computer hacker from San Francisco, pleaded guilty to identity theft and conspiracy to gain unauthorized access to computers.

The breach occurred last June. The hackers discovered a  security hole on AT&T’s website that allowed users to plug in a SIM card identifier called an ICC-ID, and were able to receive back the email address associated with that SIM card. More than 114,000 email were disclosed.