Security hacker another crime such as destroying information contained in that system". These subgroups may also be defined by the legal status of their activities. A white hat hacker breaks security for non-malicious reasons, either to test their own security system, perform penetration tests, or vulnerability assessments for a client - or while working for a security company which makes security software. The term is generally synonymous with ethical hacker, and the EC-Council, among others, have developed certifications, courseware, classes, and online training covering the diverse arena of ethical hacking. A "black hat" hacker is a hacker who "violates computer security for
Self colour the tip. The term can also be used to distinguish between colour and pattern; patterns are unpigmented areas with pink skin and white hair. In this definition, an animal has only one self-colour, which is the sum effect of all the genes acting on the pigment. For example, a black and tan piebald Dachshund has patterns (piebald) and self-colours (black and tan). Self colour A self colour refers to the top coat colouration of several domestic animals, such as dogs, pet rodents and cats. It refers to hairs of a uniform shade, with no banding or tipping of another colour.