ゼロデイ脆弱 ぜいじゃく せいじゃなかったです
zerodei zeijaku seijanakattadesu

Noun
Desu Copula

The polite, past negative form of ゼロデイ脆弱性

1. It wasn't a zero-day vulnerability.

Past/Perfective
Negative
Polite
Casual Register
Computing