段階 だんかい認証 にんしょうじゃなかったです
nida nka inin shōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 2段階認証

1. Wasn't two-factor authentication.; Wasn't two-step verification.

Past/Perfective
Negative
Polite
Casual Register
Computing