A warning today for parents to speak to their kids about online safety.
It comes as Police have release an image of a guy, who they suspect sexually assaulted a Sydney teen that he groomed online.
Detectives from the State Crime Command's Child Abuse Squad say the pair began chatting online in early 2015, when the girl was then aged 14, and met a number of times at an oval in Hornsby Heights between February 2015 and January 2016 and had sex.
Child Abuse Squad Commander, Acting Superintendent Peter Yeomans, says they haven't been able to ID him, and have now released the picture, hoping someone recognises him.
"The man is depicted as being of Asian appearance, aged between his mid 20's and mid 30's, having a medium build, with short black hair, brown eyes, and clean shaven," Det Acting Supt Yeomans said.
"He may be named or use the name 'Alex', wears glasses and was known to wear business-style clothes."
While parents are also being urged to speak to kids about online safety.
"Any app, on-line game, or social media platform that allows the user to be in contact with someone they've only met online potentially puts them at risk," he said.
If you or anyone you know has info, you should call Crime Stoppers on 1800 333 000.