1. Definition of Perpetrator?
- One who perpetrates; esp., one who commits an offense or crime.
Source: http://www.allwords.com/word-perpetrator.html
- Is the robber, assailant, counterfeiter, etc. -the person who actually committed the crime. The distinction between suspect and perpetrator recognizes that the suspect is not known to have committed the offense, while the perpetrator [who may not be a suspect yet] is the one who actually did. The suspect may be a different person from the perpetrator, or there may have been no actual crime, which would mean there is no perpetrator.


2. Definition of Cyber Criminals?
- A person who gains illegal entrance into a computer system or who diverts financial transfers into his or her own account.
Source: http://www.pcmag.com/encyclopedia_term/0,2542,t=cybercriminal&i=40630,00.asp

- A crime is committed online via emails, or chatrooms or any other form of interaction that can take place online. It does not vary much from same criminals misconduct committed in real life.

Cybercrime can take the form of cyber stalking, where they follow you around into various chatrooms and harass you online. This can also be things like a hacker taking control of your computer or someone stealing your identity online. Everything can be destroy by cybercriminals. They can wipe entire hard drives, steal your entire life and everything about it and essentially just mess your entire world.
Source: http://www.articlebase.com/internet-articles/cyber-crime-criminals-and-prevention-575109.html

3. Definition of Cyberterrorist?
-Hacker-- a programmer who breaks into computer systems in order to steal or change or destroy information as a form of cyber-terrorism.
Source: http://wordnetweb.princeton.edu/perl/webwn?s=cyber-terrorist
- is a controversial term. Some authors choose a very narrow definition, relating to deployments, by known terrorist organizations, of disruption attacks against information systems for the primary purpose of creating alarm and panic.
Source: http://en.wikipedia.org/wiki/Cyberterrorism