There was another interesting show On Radio National just now: RN Drive/ Drawing Room/ Patricia Karvelas
"Social media photos of children found on paedophile websites"
http://www.abc.net.au/radionational...children-found-on-paedophile-websites/6817872
The download link may not be there yet, but it was The Office of the Children's eSafety Commissioner talking about innocent photos of children originally shared via social media find their way on to paedophile image-sharing sites.
Common sense really - to only share with those you trust, but many don't.
Interestingly, when he spoke of paedophiles finding these innocent photos, and re-posting then with revolting comments on their websites, it was like finding the 'plumber' ((tradesman!) that you had in your house for a specific job) sitting in your lounge room going through the family albums.