Abuse victims will suffer as a result of the failed U.K. police investigation, Harvey Proctor said.
News that police abandoned their investigation into Cyril Smith comes as no surprise to many campaigners.
The Metropolitan Police referred themselves to the watchdog over 16 allegations.
The hacker group is seeking to expose the perpetrators of historic abuse online.
Lowell Goddard is the third person to head the inquiry after the previous two were forced to quit.
John Mann MP compiled the list which contains the names of three current MPs
The scandal has gathered pace after a father said his son may have been murdered by a VIP paedophile ring