CEOP's Thinkuknow recently produced 4 short animated films on young people and taking nude selfies, and how to respond if your child sends a picture they regret. The films are based on research conducted over two years. Here CEOP underlines some of the key points.
Even world leaders take selfies... In this video, Vicki Shotbolt of The Parent Zone talks about the hazards of online flirting via photos - and what to tell your child.
Does the fact that photos disappear from Snapchat make it completely safe to use? If things do go wrong, what can you do?
How to be a bit more careful, and a bit better informed, when using Snapchat.