He allegedly used the hacker names "trainreqsuckswhat," ''anonygrrl" and "jaxjaguars911," and also used the victims' identities to illegally access and control computers. Chaney is accused of damaging email servers that caused losses of at least $5,000 per instance.

Authorities wouldn't say whether Chaney was able to access email accounts via cell phones, but he was able to figure out secure passwords to various celebrity accounts through information that had been made public.

Chaney mined publicly available data and figured out passwords and security questions, officials said.

Authorities wouldn't say whether Chaney was able to access email accounts via cell phones, but he was able to figure out secure passwords to various celebrity accounts through information that had been made public.

Chaney was arrested by the FBI at his Westside home Wednesday morning and made his initial court appearance in the Jacksonville Federal Courthouse that afternoon.

Chaney was released to the custody of his parents on bail with one of several conditions being that he have no access to any computer or other device that has access to the Internet.

Channel 4 has learned that Chaney pleaded guilty to federal mail fraud charges in 1998 in a case involving Prudential Insurance.