Two factor authentication (2FA)

    1. Proton Account
    2. Passwords and authentication
    3. Two factor authentication (2FA)

    How to use a 2FA security key to protect your Proton account

    You can use a U2A or FIDO2 security key to secure your Proton Account with two-factor authentication (2FA).

    1. Proton Account
    2. Passwords and authentication
    3. Two factor authentication (2FA)

    Two-factor authentication (2FA) is not working

    In most cases, 2FA fails because the time on each device is not synchronized. For 2FA to function properly, the date and time on the device on which you are logging in to Proton Mail must be exactly the same as those of the device where you receive your 2FA code.

    1. Proton Account
    2. Passwords and authentication
    3. Two factor authentication (2FA)

    Two-factor authentication (2FA)

    Two-factor authentication (2FA) is an additional layer of security for your Proton Mail account. We show you how to enable and use it.

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