This document discusses cyber crime, including its history, types, and how to prevent it. It begins with an introduction defining cyber crime as any illegal action involving a computer network. It then covers the history of cyber crimes evolving from hackers accessing networks for thrills to criminals spreading viruses. The main types of cyber crimes discussed are hacking, identity theft, virus dissemination, software piracy, cyberstalking, spamming and phishing. The document also addresses the growth of cyber crimes in India and provides tips for prevention such as awareness, strong passwords, antivirus software, and reviewing statements regularly.