This document defines and describes various types of cyber crimes. It explains hacking as illegal intrusion into a computer system without permission and notes related punishments under Indian law. Other cyber crimes discussed include virus dissemination, cyber stalking, software piracy, pornography, IRC crimes, credit card fraud, net extortion, phishing, spoofing, cyber defamation, and salami attacks. For each crime, it provides a definition and references the related section of the Indian Information Technology Act of 2000 specifying punishment.