An Ohio man charged with conspiracy for allegedly claiming to be part of the computer hacking group "Anonymous" and posting a YouTube threat to release confidential computer information belonging to the University of Pittsburgh pleaded not guilty on Tuesday.

Alexander Waterland, 24, of Loveland, Ohio, and his attorney declined comment after his 15-minute arraignment before U.S. Magistrate Judge Maureen Kelly.

A federal grand jury earlier this month indicted Waterland and Brett Hudson, 26, of Hillsboro, Ohio, on charges they posted the threats in April and May. Online court records don't list an attorney for Hudson, who is scheduled to be arraigned in Pittsburgh on Sept. 6. Hudson has previously told The Associated Press he won't comment on the charges.

Although Pitt officials later determined their computer information was never hacked, the threats claimed it was and the FBI determined that Waterland and/or Hudson had downloaded some personal information from students and faculty and emailed some of it to Pitt officials to "prove" the hacking had occurred.