White hat (computer security) certification covers orderly, ethical hacking techniques and team-management. Aggressor teams are called "red" teams. Defender teams are called "blue" teams. When the agency recruited at DEF CON in 2012, it promised applicants that "If you have a few, shall we say, "indiscretions" in your past, don't be alarmed. You shouldn't automatically assume you won't be hired". White hat (computer security) The term "white hat" in Internet slang refers to an ethical computer hacker, or a computer security expert, who specializes in penetration testing and in other testing methodologies that ensures the security of an organization's information systems. Ethical hacking is
Buff (colour) colour "in the range of the Marschall color", meaning the colour in illustrations in a particular book. As a relatively inexpensive and readily-available paint colour, and one which went well alongside the near-universal black hull and white superstructure used on steamships at the time, White Star was far from the only shipping line to use a shade of buff as a funnel colour. The Orient Line and Norddeutscher Lloyd used an entirely buff funnel without the black top, while Canadian Pacific and the Swedish American Line employed a buff funnel with a representation of the company's house flag on them.