Children's charity NSPCC called today for five-year-olds to be taught how to stay safe on the internet.
It said it would help cut the number of kids forced to send indecent image to others, exposed to pornography or bullied online.
It said young people are being abused online "on a scale never before seen."
It said it had received more calls about online pornography, some from children as young as 11.
Spokeswoman Claire Lilley said: "It's now clear that we are facing an e-safety timebomb."
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