Prime Minister Scott Morrison has revealed all Australian major political parties were hacked by a “sophisticated state actor” in a breach of security earlier this month. 

Mr Morrison provided an update on the investigation into the cyber attack on February 8.

“During the course of this work we also became aware that the networks of some political parties, Liberal, Labor and Nationals have also been affected.” 

“Our cyber experts believe that a sophisticated state actor is responsible for this malicious activity,” Mr Morrison told Parliament on Monday.  

The Prime Minister insists there has been no breach or impact on the electoral office. He said cyber security will be stepped up as a precaution.

“We have acted decisively to protect our national interests.

“The methods used by malicious actors are constantly evolving and this incident just re-enforces yet again the importance of cyber security as a fundamental part of everyone’s business.”

‘No further breaches’

Earlier, Senate estimates heard there have been no more breaches of the federal parliamentary computer system in Canberra since a sophisticated cyber attack 10 days ago.

Senate President Scott Ryan also told an estimates committee he was confident there had been no breach of parliamentary privilege in the attack.

He said the investigation into the attack was continuing but he was confident upgrades made in recent years had helped maintain the network’s security.

More to come. 

Additional reporting: AAP