Computer networks of the major political parties were affected by a recent hack.

More details have emerged from a review of a cyber-incident involving the federal parliament’s computer network in early February.

“Members will be aware that the Australian Cyber Security Centre (ACSC) recently identified a malicious infiltration into the Australian Parliament House computer network,” Prime Minister Scott Morrison said on Monday.

“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.

“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.”

The ACSC has issued a statement confirming the fact that parties were affected as well as parliament itself.

“The ACSC is leading a coordinated response with the security and intelligence community to understand the impacts and assist affected organisations,” the authority stated.

“Our expert teams are offering technical support, focused on securing the networks and protecting users. Our investigations are ongoing.”

The ACSC has produced a scanning tool configured to search for known malicious web shells that it has encountered in its investigation.

The scanning tool is accessible here.