Children can become victims of abuse on the internet through online games, social networking sites and apps such as Facebook, Instagram and Snapchat, which they can access through devices including tablets, mobile phones and games consoles.
Watch Breck's Last Game, a film that tells the story of teenager Breck Bednar, who like many youngsters his age loved playing computer games, but was groomed online.
The charities, groups and organisations below can provide information and support.
ThinkUKnow A website run by CEOP (see above) for people of all ages, providing easy-to-understand advice and ways to get in touch.
Childline A free, private and confidential service where children can talk to a trained counsellor about anything that’s troubling them, any time of day.
Get Safe Online Free and impartial security advice on how to stay safe online and protect your internet-connected devices.
UK Safer Internet Centre The advice centre provides information on online safety for young people (from aged three to 11 and from 11 to 19), parents and carers, and teachers and professionals.