denial-of-service attack; DoS attack
Computing term for an attack that makes a service unavailable to its intended users.
The site became temporarily inaccessible due to a denial-of-service attack.
Abbreviation of サービス妨害攻撃; more common in casual tech contexts.
Compound of サービス (service), 妨害 (obstruction), and 攻撃 (attack), calqued from English 'denial-of-service attack'.