ASIO director-general Mike Burgess, speaking alongside Kershaw, said the arrests came after a "lengthy and complex investigation" by law enforcement agencies.
"Over the last 18 months, we have seen an uptick in the number of nationalist and racist violent extremists advocating sabotage in private conversations both here and overseas."
Some of the Russian agents posed as diplomatic staff while others used deep cover identities, operating for 18 months before being dismantled by ASIO.
Australia's domestic intelligence agency is warning foreign spies are behind "sophisticated and wide-ranging" attempts to interfere with the country's affairs.
The largest review of Australia's spy laws since the early 1980s has recommended an overhaul of the complex and outdated laws governing digital surveillance and data collection.
Australia should conduct "bio-burn" and let coronavirus spread across Australia, state-by-state, with the goal of achieving herd immunity, an international security expert has suggested.
The Federal Government has been accused by China of "blatant irrational behaviour", with reports six Chinese nationals have been questioned as part of a foreign foreign interference investigation here.
A man labelled a "risk to security" by Australia's internal spy agency will be flown from coronavirus-crippled Melbourne to a detention centre in Western Australia to keep him safe from the pandemic.
Spies, hackers and terrorists are increasing their online activity during the coronavirus pandemic seeking to harm Australia, the head of the nation's domestic intelligence service has warned.
An Australian spy has revealed details about "one of the most important jobs in the world" - with the agency looking for fresh recruits to join its ranks.
Prime Minister Scott Morrison says security and intelligence agencies are certain "the threat from foreign interference has never been greater" in Australia.
Retired ASIO chief Duncan Lewis has accused the Chinese government of using "insidious" foreign interference operations to "take over" Australia's political system.
Foreign interference and hostile state espionage are a bigger threat to Australia's security than terrorism, one of the country's top spy chiefs has warned.
The head of the Australian Signals Directorate Mike Burgess has been appointed as the new director-general of the Australian Security Intelligence Organisation.
The planned shake-up of foreign interference laws have been welcomed by an Australian student who says he has been the target of Chinese government intimidation.
Prime Minister Malcolm Turnbull has overhauled the country’s intelligence security division into a single super-ministry to tackle the “multidimensional” threats that Australia faces.