Facebook wants you to send them your nude picture. But why?

The tricky part? You have to know the picture you don't want spread around, and upload it to a special Facebook program.

The pilot is meant to help prevent "revenge porn", or having intimate images shared across the social network without the owner's permission.

According to Australia's eSafety office, 1 in 5 Australians has faced image-based abuse, where an intimate photo has been posted to social media without their consent.

Four percent of internet users in the US have been victims of revenge porn and 10 percent of women under the age of 30 have had someone threaten to expose explicit photos of them online, according to a 2016 study by the research institute Data & Society.

The scheme is aimed at people who are anxious partners or ex-partners may share the images without their consent - and is being trialled in Australia, the US, Canada and the UK.

It's definitely worth thinking about how to hack proof your life but the good news is that Facebook are finally climbing onboard, too.

Julie Inman Grant, Australia's e-Safety commissioner, said the company will not store the images permanently as after they are processed into a hash, the code is all that will remain.

Facebook would then use technology to "hash" the photo - basically creating a digital fingerprint of the image. The company will use the photo to make a digital footprint so its image-matching technology can stop someone from uploading a copy. Facebook, in their April announcement of the program, called the employees "specially trained representatives from our Community Operations team".

"This pilot has the potential to disable the control and power perpetrators hold over victims, particularly in cases of ex-partner retribution and sextortion, and the subsequent harm that could come to them", Inman Grant said in a statement.

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