Revenge porn

The national survey of more than 4,200 people found that men and women were equally likely to be targeted.

But men were more likely to be perpetrators, while women held more safety fears, said Australia's first comprehensive research on the subject.

The findings showed that the abuse was more widespread than previously thought, researchers said.

A fifth of respondents had a sexual or nude image taken without their consent, according to the RMIT University and Monash University study.

The term refers to non-consensual pornography that's distributed online to shame, exploit or extort its victims.

And on Wednesday, the company said it would apply photo-matching to ensure intimate, nonconsensual images that are reported once aren't able to be uploaded again through Facebook's properties, including Messenger and Instagram.

The use of the internet to control and threaten victims was rising, she said.

Domestic abuse and sex offences make up 18.6% of CPS cases, with prosecutions and convictions at record levels.

The CPS's annual Violence Against Women and Girls (VAWG) report, which also incorporates data on abuse and sex offences against men and boys, has been produced since 2007.