Computer crimes are on the rise as more individuals and organizations conduct business and transactions online. The document outlines several types of computer crimes, including hacking, denial of service attacks, software piracy, credit card fraud, cyberstalking, and sale of illegal goods. The profile of cyber criminals is varied, ranging from disgruntled employees to professional hackers to ex-partners seeking revenge. Victims can be anyone but are often inexperienced users. Strong security practices are needed to protect against the anonymity and large storage of computers that criminals exploit.