This document discusses cyber crime and cyber security. It begins with an introduction defining cyber crime as unlawful acts using computers and the internet. It then provides a history of cyber crime, categories of cyber crime such as computer as a target or weapon. It describes various types of cyber crimes like hacking, child pornography, denial of service attacks. It discusses how cyber crimes threaten national security and the importance of cyber security through tools like privacy policies, software updates, and disabling remote connectivity. The document concludes saying cyber crime will continue developing so cyber security is needed to protect users.