Cyberbullying.
Strangers Online.
Not everybody online is who they claim to be. Never ever meet anyone in person who you have met online without a parents' or carers' permission, and a friend who can come with you.
Spam is a term used to describe bulk commercial messages, normally advertising a product or a service. As well as being annoying, Spam may be an internet danger if it involves deception and fraud.
Viruses.
Viruses can damage a computer, and mean a loss of files, software and images. They can also give people access to your online identity and personal information.