Clown clowns with "whiteface" makeup: The classic "white clown" is derived from the Pierrot character. His makeup is white, usually with facial features such as eyebrows emphasized in black. He is the more intelligent and sophisticated clown, contrasting with the rude or grotesque "Auguste" types. Francesco Caroli and Glenn "Frosty" Little are examples of this type. The second type of whiteface is the buffoonish clown of the "Bozo" type, known as "Comedy" or "Grotesque Whiteface". This type has grotesquely emphasized features, especially a red nose and red mouth, often with partial (mostly red) hair. In the comedic partnership of Abbott and
White hat (computer security) has malicious intent, there is a third kind known as a grey hat hacker who hacks with good intentions without permission. White hat hackers may also work in teams called "sneakers", red teams, or tiger teams. One of the first instances of an ethical hack being used was a "security evaluation" conducted by the United States Air Force, in which the Multics operating systems was tested for "potential use as a two-level (secret/top secret) system." The evaluation determined that while Multics was "significantly better than other conventional systems," it also had "... vulnerabilities in hardware security, software security and procedural