The sentencing for LulzSec leader-turned-FBI informant Hector Monsegur was cancelled on Friday morning, according to reports.
Monsegur, who used the handle Sabu, was scheduled to be sentenced in New York, but the hearing was not held for an unknown reason.
He faces up to 124 years in prison, but is expected to receive a much lighter sentence considering he co-operated with federal agents to help them arrest at least five other members of the Anonymous and LulzSec hacktivist collectives.
Alleged co-hacker Jeremy Hammond will face the same judge, Judge Loretta Preska.
Hammond has pleaded innocent to charges that he helped hack the Arizona Department of Public Safety in June 2011 and six months later the global intelligence firm Stratfor, which serves major corporate and government agency clients.
His defense team this week asked Preska to recuse herself from the case because her husband may have been a customer of Stratfor. She denied the motion, according to reports.
Hammond has been held in a New York prison without bail since last March. Last year, Preska denied Hammond bail out of his “lack of regard for legal authority" and because of his advanced hacking skills. If convicted, Hammond faces 30 years to life in prison.
In a statement Hammond released this week, he suggested he has remained locked up because he was a victim of "a recent aggressive, politically-motivated expansion of computer crime law where hackers and activists are increasingly criminalised because of alleged 'cyber-terrorist' threats".
In addition he referenced a "fundamentally flawed and corrupt two-tiered system of 'justice' which seeks to reap profits from the mass incarceration of millions, especially people of colour and the impoverished."
His trial is now scheduled for April 10.