The Prime Minister was given a tour of the Australian Defence Signals Directorate in Canberra - home to our most senior intelligence officials.
There, Malcolm Turnbull received a high-level briefing on the threat posed to Australia by cyber-hacking, in the light of Russia's unprecedented intervention in United States politics.
Mr Turnbull says it is acknowledged that there was Russian interference both in terms of hacking and in terms of seeking to influence the election through so-called fake news.