Does Fathom work with authenticator apps like MS Authenticator App?

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

Is Fathom two-factor authentication free?

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

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

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

How to enable 2FA on Fathom

← Fathom overview Supported

Protect your Fathom account with two-factor authentication (2FA). Once enabled, signing in also requires a one-time code from your authenticator app — not just your password.

Step-by-step setup

1
Sign in to Fathom and open your Fathom account security settings.
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 Fathom 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 Fathom account.
5
Save your backup codes.
Store the recovery codes Fathom gives you somewhere safe — you'll need them if you lose your phone.

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

Frequently asked questions

Does Fathom work with authenticator apps like MS Authenticator App?: Yes. Fathom supports TOTP authenticator apps, so you can generate its two-factor codes in MS Authenticator App.
Is Fathom two-factor authentication free?: Yes. Enabling authenticator-app 2FA on Fathom is free — you only need the free MS Authenticator App.
What if I lose access to my Fathom 2FA codes?: Use the backup or recovery codes you saved during setup. If you didn't save them, contact Fathom support to regain access, then re-add the account to MS Authenticator App.

Generate your Fathom codes in MS Authenticator App

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

Get the app

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