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
Nene Valley Colour Coated Ware are associated with a number of kilns found throughout the area at Stibbington, Sibson-cum-Stibbington, Chesterton, Yaxley, and Stanground. The NVCC ceramic is a hard, smooth-textured fabric with finely irregular fracture. It is usually coloured white to off-white. The slip has a variable colour, dark brown to black, mottled lighter orange or orange-brown where thinner. The temper includes an abundant amount of very fine quartz sand and occasional larger quartz grains, red or orange and black flecks and occasional pale clay pellets. The decoration of NVCC vessels is quite distinctive. The most common forms are beakers; both cornice-rimmed and bag-beakers. Where