*Flooding – a form of cyberspace vandalism. When a cracker floods a site using a technique called distributed denial-of-service or DDoS he or she plants software programs on large computers with high-speed connections to the internet. It will cause computer system overloaded and cease functioning.
*Virus and worm production and release – a form of cyberspace vandalism causing corruption possibly erasing of data. Virus is a self-replicating program. While worms is very similar to a vorus but it does not need a file to travel in a most definition agree that worms have the capacity to ravel autonomously.
*Spoofing – It is the act of assuming a fake identity, normally in order to trick another party into exchanging, submitting or accepting authentication or other confidential data. The act of web spoofing involves the redirection of a user's Internet browser to a given website when the user types in a similar URL address; this technique may be used by pornography websites to lure visitors to their sites.
*Phreaking – Phreakers use technology to obtain unauthorized access to the telephone system
*Infringing intellectual property right and copyright
Cybercrime on physical site
