Countermeasure (noun)

1. An action taken to counteract or neutralize a threat or problem.
2. A measure taken to prevent or reduce the effectiveness of an opposing force.

Origin:

From the words "counter" meaning "against" and "measure" meaning "action taken".

Examples:

1. The company implemented a countermeasure to prevent data breaches.
2. The military developed countermeasures to neutralize the enemy's weapons.
3. The countermeasure was able to neutralize the virus before it could spread.
4. The countermeasure strategy included deploying anti-missile systems.
5. The organization's security team developed a countermeasure plan in case of a cyber attack.