Prime Minister Scott Morrison has confirmed that investigations are underway following a recent cyber attack on Parliament House.
The major political parties may have been targeted by a foreign government, and the PM has insisted during a press conference this afternoon that there is no evidence as yet of electoral interference.
"Our cyber experts believe that a sophisticated state actor is responsible for this malicious activity," Mr Morrison said.
"Let me be clear, there is no evidence of any electoral interference.
"We have put in place a number of measures to ensure the integrity of our electoral system."
There was a breach of the servers at Parliament House on February 8 this year, with computer servers and which saw staff locked out of their emails as security teams reset passwords.
It is understood that ministers have not been impacted by the breach as they are on different computer servers.