Keeping children safe online | NSPCC - The NSPCC Online Safety Hub.
UK Safer Internet Centre Support and advice about staying safe online.
Thinkuknow The National Crime Agency's CEOP Education team aim to help protect children and young people from online child sexual abuse.
Support from childline.org.uk (Sexting)
Remove a nude image shared online
Childline: Sexting and sending nudes
Report Remove | IWF - The Internet Watch Foundation provides advice for parents about online safety, a podcast as well as a ‘Report Remove Tool’ to remove a nude image shared online.