The Child Exploitation and Online Protection Centre has developed a cartoon about online safety, featuring a dolphin called Hector, which is aimed at five- to seven-year-olds. Research from media watchdog Ofcom shows that nearly 60 per cent of five-to seven-year-olds use the internet, and 21 per cent do so unsupervised. Jim Gamble, chief executive of the centre, said: "We know that children are using the internet at an increasingly young age. Teachers have asked us for this material because it is never too early...