Hardening is the process by which something becomes harder or is made harder. Hardening may refer to: * Hardening (metallurgy), a process used to increase the hardness of a metal * Hardening (botany) or cold hardening, a process in which a plant undergoes physiological changes to mitigate damage from cold temperatures *

Hardening (computing) In computer security, hardening is usually the process of securing a system by reducing its surface of vulnerability, which is larger when a system performs more functions; in principle a single-function system is more secure than a multipurpos ...

, the process of securing a system against attack *

Target hardening Target hardening, also referred to simply as hardening when made clear by the context, is a term used by police officers, those working in security, and the military referring to the strengthening of the security of a building or installation in o ...

, strengthening of the security of a building or installation to protect it from attack * Sclerotization, a biochemical process forming cuticle in arthropods

See also