A countermeasure is a measure or action taken in opposition to another Several countermeasures are used to counteract the negative effects of space flight, including the performance of rigorous exercise to reduce the degeneration of muscles and bones caused by disuse during stays in microgravity
A check or restraint on the service designed to enhance security by reducing the risk of an attack (by reducing either the threat or the vulnerability), reducing the impact of an attach, detecting the occurrence of an attack and/or assisting in the recovery from an attack
A mechanism or procedure placed in a system environment to reduce risk (i e threats, impact or vulnerability)
Any action, device, procedure, technique, or other measure that minimizes the security weaknesses of a system
An action, device, procedure, or technique that reduces a threat, a vulnerability, or an attack by eliminating or preventing it, by minimizing the harm it can cause, or by discovering and reporting it so that corrective action can be taken