2FA セットアップガイド

Instagram アカウントで 2FA を有効にする方法

2026年6月5日を更新しました

2 要素認証 (2FA) は、パスワードが漏洩した場合でも、Instagram アカウントを保護します。 iPhone、iPad、または Mac で Authenticator App を使用して Instagram 検証コードを生成するには、以下の手順に従ってください。

Download Authenticator App
Download Authenticator App from the App Store on your iPhone, iPad or Mac. It's free and no sign-up is required.
Open Instagram security settings
In the Instagram app, go to your profile, open the menu and choose “Accounts Center” → “Password and security”.
Choose two-factor authentication
Tap “Two-factor authentication”, select your account, then choose “Authentication app”. Instagram will show a QR code or setup key.
Scan the QR code with Authenticator App
Open Authenticator App, tap the + button and scan the QR code shown by Instagram. If you can't scan it, choose the manual option on Instagram and type the setup key into the app instead.
Enter the 6-digit verification code
Type the 6-digit code from Authenticator App back into Instagram to confirm the setup. The code refreshes every 30 seconds.
Save your backup codes
If Instagram offers backup or recovery codes, download or write them down and store them somewhere safe. They let you regain access if you ever lose your device.