The Federal Government has been accused of censorship after a prominent US whistleblower and an academic were cut from the schedule of Australia's biggest cyber security conference.

The experts were due to speak at CyberCon in Melbourne, an event organised in partnership with the government's Australian Cyber Security Centre.

Guests:

Thomas Drake, former executive, US National Security Agency (NSA)

Suelette Dreyfus, lecturer, University of Melbourne

Producer: Justine Parker