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Several subgroups of the computer underground with different attitudes and aims use different terms to demarcate themselves from each other, or try to exclude some specific group with which they do not agree. Eric S. Raymond advocates that members of the computer underground should be called crackers. Yet, those people see themselves as hackers and even try to include the views of Raymond in what they see as one wider hacker culture, a view harshly rejected by Raymond himself. Instead of a hacker – cracker dichotomy, they give more emphasis to a spectrum of different categories, such as white hat (ethical hacking), grey hat, black hat andscript kiddie. In contrast to Raymond, they usually reserve the term cracker to refer to black hat hackers, or more generally hackers with unlawful intentions.

[edit]White hat

A white hat hacker breaks security for non-malicious reasons, for instance testing their own security system. This type of hacker enjoys learning and working with computer systems, and consequently gains a deeper understanding of the subject. Such people normally go on to use their hacking skills in legitimate ways, such as becoming security consultants. The word 'hacker' originally included people like this, although a hacker may not be someone into security.

[edit]Grey hat

A grey hat hacker is a hacker of ambiguous ethics and/or borderline legality, often frankly admitted.

[edit]Black hat

A black hat hacker is someone who breaks computer security without authorization or uses technology (usually a computer, phone system or network) for vandalism, credit card fraud, identity theft, piracy, or other types of illegal activity.

[edit]Script kiddie

A script kiddie is a non-expert who breaks into computer systems by using pre-packaged automated tools written by others, usually with little understanding. These are the outcasts of the hacker community.

[edit]Hacktivist

A hacktivist is a hacker who utilizes technology to announce a social, ideological, religious, or political message. In general, most hactivism involves website defacement or denial-of-service attacks. In more extreme cases, hactivism is used as tool for Cyberterrorism.