TV presenter Cathy Newman says she is haunted by finding deepfake pornography of herself.
An investigation by her Channel 4 News found 250 British stars had faces or bodies superimposed on X-rated images.
Cathy, 50, was shown a digitally manipulated clip of herself and said: “I decided to be my own case study.
"I hadn’t seen it before we started filming and thought, ‘Well, we cover gruesome stories — it will be water off a duck’s back’.
“But I found myself keeping on returning to the images.
"It was haunting.
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"The worst thing is not knowing who created this, and why.”
Ex-Love Islander Cally Jane Beech, 33, said she called police over a faked image but was told there was little they could do.
She said: "I was just contacted out of the blue and someone said 'There's an explicit image of you', and I said 'Well, that can't be true', because I knew I hadn't taken anything like that.
"And they said 'It's on Google', so I asked them to send me the link so I could have a look, opened it and, to my surprise, there was there an image of me.
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"I knew it wasn't real because I had the original photo and it was for an underwear campaign - but the underwear wasn't there."
A new law aims to target the creators and sharers of deepfakes.