サービス拒否 きょひ攻撃 こうげきでしょう
sābisukyohikōgekideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of サービス拒否攻撃

1. Probably a denial-of-service attack.

Polite
Presumptive
Conjecture
Internet