1.
two-factor authentication; 2FA
A security method that requires two separate forms of verification, such as a password plus a one-time code sent to a phone.
二要素認証を設定する。
to set up two-factor authentication.
このサービスは二要素認証に対応している。
This service supports two-factor authentication.
セキュリティを高めるために、二要素認証を有効にした。
I enabled two-factor authentication to improve security.
Composed of 二要素 ('two factors') + 認証 ('authentication'). A common online-security measure that combines two independent credentials.
COMMON COLLOCATIONS:
- 二要素認証を有効にする: to enable two-factor authentication
- 二要素認証を設定する: to set up 2FA
SIMILAR WORDS:
- 二段階認証: two-step verification — very close in meaning and often used interchangeably