To the bbc news at one. Young people are being left to fend for themselves when it comes to digital dangers such as bullying and grooming, according to the childrens commissioner for england. Anne longfield says children should be taught in school what they need to stay safe online. She also warned that children are frequently giving personal information away without knowing how their data will be used. Heres our correspondent gillian hargreaves. Look familiar . Teenagers stuck to their mobile phones. Millions are connected to their friends via social media but the childrens commissioner says too many are allowed to roam in a cyber world with limited protection and regulation. The girls at this high school in warrington think there is a risk. Teenagers dont know what theyre signing up to. The important thing you need to know about setting up thing you need to know about setting upa thing you need to know about setting up a profile, you need to be talking about it and kids need to be to