Up to 50 percent of online child sexual exploitation is committed by children under 18.
A conference on cyber sexual abuse has heard that many children consider sexting as harmless, and like flirting.
Juliette Gash reports;
It emerged yesterday that up to 20 British children are among more than 150 alleged victims of a man who posed as Justin Bieber on social media in order to obtain explicit images from them.
42-year-old Gordon Chalmers from Australia is now facing more than 900 sex offence charges.
Gardai say they haven't heard of the involvement of any Irish children.
