Difference between incident and attack in Korean
사건·공격

사건incident
This word means an incident or a case that happened. It is often used for something important, unusual, surprising, or sometimes bad. People use 사건 when talking about news, police matters, or a problem that happened somewhere.

공격attack
Attack (공격) means trying to hurt a person, animal, or place. It is also used in sports and games when one side moves forward to score or win. You will often hear this word in news, games, and simple action stories.
The difference
공격 is the act of hitting, harming, or attacking someone or something. 사건 is broader and can be any notable incident, including an attack.