an aggressive or violent action against someone or something

the act of attacking or the state of being attacked

हमला करना

English Usage: His sudden attack surprised everyone.

Hindi Usage: उसका अचानक हमला सबको हैरान कर दिया।

an action or measure taken to counter or mitigate a problem

steps taken to reduce the risk following a threat or attack

निवारक उपाय

English Usage: They developed countermeasures against cyber attacks.

Hindi Usage: उन्होंने साइबर हमलों के खिलाफ निवारक उपाय विकसित किए।