The document discusses conventional crimes and cyber crimes. It defines conventional crime as acts that breach criminal law. Cyber crimes involve using computers as tools or targets to commit unlawful acts. Some key differences are the involvement of computers and virtual mediums in cyber crimes. Common cyber crimes include unauthorized access, data theft, viruses, hacking, cyber stalking, and cyber terrorism. Cyber criminals can be organized groups, hackers, or discontented individuals. The document provides detailed descriptions and examples of various cyber crimes.