Crack

Crack or cracking may mean:

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• Cracking (chemistry), the decomposition of complex organic molecules into smaller ones.
• Vocal crack, a sharp change in vocal characteristics.
• Crack cocaine, A crudely freebased form of cocaine.
• Cracking knuckles
• Software cracking, the defeating of software copy protection.
• Security cracking, the defeating of security devices in computer networks.
• Password cracking, the process of discovering the plaintext of an encrypted computer password.
• System cracking, the process of gaining unauthorized access to a computer system (typically carried out by a black-hat hacker). Cracking can be defined as the act of entering a computer or computer network by force, where hacking is the doing so by manipulation.
• Cracking codes, a term for cryptanalysis.
• A structural failure mode in material science, metallurgy and mechanical engineering.
• The value difference between a crude oil & oil products (usually per barrel) or different oil products, for instance a mogas crack - the difference between mogas & crude oil.
• An informal meaning to crack may mean the part of one's own buttocks.
• CRACK, an acronym for Children Requiring A Caring Kommunity. This program based in Baltimore, Maryland, USA, pays drug users money to be sterilized and is now named Project Prevention.