Does Proton work with authenticator apps like MS Authenticator App?

Yes. Proton supports TOTP authenticator apps, so you can generate its two-factor codes in MS Authenticator App.

Is Proton two-factor authentication free?

Yes. Enabling authenticator-app 2FA on Proton is free — you only need the free MS Authenticator App.

What if I lose access to my Proton 2FA codes?

Use the backup or recovery codes you saved during setup. If you didn't save them, contact Proton support to regain access, then re-add the account to MS Authenticator App.

Should I use an authenticator app or a security key on Proton?

Proton supports both. An authenticator app like MS Authenticator App is free and works on any phone; a hardware security key adds phishing resistance. You can enable both.

How to enable 2FA on Proton

← Proton overview Supported

Proton lets you secure your account with an authenticator app. With 2FA on, each login needs a fresh 6-digit code, keeping your Proton account safe even if your password leaks.

Step-by-step setup

1
Sign in to Proton and open Settings → Account and password → Two-factor authentication.
2
Turn on two-factor authentication and choose the authenticator-app option.
Look for "Authenticator app", "Authentication app", or "TOTP" rather than SMS.
3
Scan the QR code with MS Authenticator App.
Open MS Authenticator App, tap add, and point your camera at the QR code Proton displays. Can't scan? Enter the setup key manually instead.
4
Enter the 6-digit code to confirm.
Type the code MS Authenticator App generates to verify and link your Proton account.
5
Save your backup codes.
Store the recovery codes Proton gives you somewhere safe — you'll need them if you lose your phone.

Menu names on Proton can change — the official Proton 2FA documentation ↗ always has the exact, current path.

Frequently asked questions

Does Proton work with authenticator apps like MS Authenticator App?: Yes. Proton supports TOTP authenticator apps, so you can generate its two-factor codes in MS Authenticator App.
Is Proton two-factor authentication free?: Yes. Enabling authenticator-app 2FA on Proton is free — you only need the free MS Authenticator App.
What if I lose access to my Proton 2FA codes?: Use the backup or recovery codes you saved during setup. If you didn't save them, contact Proton support to regain access, then re-add the account to MS Authenticator App.
Should I use an authenticator app or a security key on Proton?: Proton supports both. An authenticator app like MS Authenticator App is free and works on any phone; a hardware security key adds phishing resistance. You can enable both.

Generate your Proton codes in MS Authenticator App

Free, offline, and encrypted. One tap for every 6-digit code.

Get the app

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