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
Prefix in the sentence), or derivational, creating a new word with a new semantic meaning and sometimes also a different lexical category. Prefixes, like all other affixes, are usually bound morphemes. In English, there are no inflectional prefixes; English uses suffixes instead for that purpose. The word "prefix" is itself made up of the stem "fix" (meaning "attach", in this case), and the prefix "pre-" (meaning "before"), both of which are derived from Latin roots. In English, a fairly comprehensive list, although not exhaustive, is the following. Depending on precisely how one defines a derivational prefix, some of the neoclassical combining