Please see the links below for advise on how to protect your children:
http://www.hants.gov.uk/childrens-services/childrenandyoungpeople/bullying.htm
https://www.thinkuknow.co.uk/parents/
https://www.broadbandgenie.co.uk/features/online-safety-children-guide-protecting-your-kids-online
http://www.youngpeoplesafeonline.com/
http://www.bbc.co.uk/webwise/0/
The following websites contain information about how your child can keep themselves safe and still enjoy using the Internet. Most importantly, they can report illegal or inappropriate online behaviour through the ‘Report abuse’ button.
Links:
https://www.ceop.police.uk/safety-centre/