Crime is defined as "an act or the commission of an act that is forbidden, or the omission of a duty that is commanded by a public law and that makes the offender liable to punishment by that law".

Cybercrimes are classified as follows:

1. Cybercrime against individual

• Electronic Mail (E-Mail) Spoofing and other online frauds
• Phishing, Spear Phishing and its various other forms such as Vishing and Smishing
• Spamming
• Cyberdefamation
• Cyberstalking and Harassment
• Computer Sabotage
• Pornographic Offenses
• Password Sniffing

2. Cybercrime against property

• Credit card frauds
• Intellectual property (IP) crimes
• Internet time theft

3. Cybercrime against organization

• Unauthorized accessing of computer
• Password sniffing
• Denial-of-service attacks
• Virus attack/dissemination of viruses
• E-Mail bombing/mail bombs
• Salami attack/Salami technique
• Logic bomb
• Trojan Horse
• Data diddling
• Crimes emanating from Usenet newsgroup
• Industrial spying/industrial espionage
• Computer network intrusions
• Software piracy

4. Cybercrime against Society

• Forgery
• Cyberterrorism
• Web Jacking

5. Crimes emanating from Usenet newsgroup

By its very nature, Usenet groups may carry very offensive, harmful, inaccurate or otherwise inappropriate material, or in some cases, postings that have been mislabeled or are deceptive in another way, Therefore, it is expected that you will use caution and common sense and exercise proper judgment when using Usenet, as well as use the service at your own risk.