There is no life without internet now.
So we all should know about its issues.
the illegal copy and distribution of copyrighted software, games or music files
pretending that someone else’s work is your own
implies spreading of destructive / intrusive software such as PC viruses, worms, scareware, adware, spyware, ransomware, Trojan horses as well as other forms of malicious programs.
getting passwords for online bank accounts or credit card numbers by using emails that look like they are from real organizations, but are in fact fake; people believe the message is from their bank and send their security details.
making one computer look like another in order to gain unauthorized access.
online harassment or abuse, mainly in chat rooms or newsgroups
taking, making, circulation, and possession with a view to distribution of any indecent photographs.