Tip: You could store a copy of the codes on your phone, just in case you accidentally delete the authenticator app entry. They are single-use only and can only be used in the specified order, so make sure to note all of them down, in order, in a safe location, and then to back them up. These codes can be used to regain access to your account if you lose access to your 2FA device.

Once, you’ve scanned the QR code, enter your account password and the 2FA passcode shown on your phone to synchronise.įinally, you’ll be presented with a list of recovery codes. Download whichever app you want to use, then scan the QR code that is presented on the webpage. ProtonMail supports three mobile 2FA applications, available on both iOS and Android: Authy, Google Authenticator, and FreeOTP.

Click on “Settings” then switch to the “Security” tab and click “Enable Two-Factor Authentication” in the top-left corner. To enable two-factor authentication in ProtonMail, you need to click on “Settings” then switch to the “Security” tab, and click “Enable Two-Factor Authentication” in the top-left corner. Tip: 2FA tokens don’t necessarily need to be phones, there are other purpose-built authentication tokens available, however, not all platforms support them. This approach is known as “Something you know and something you have”. It’s much more complicated to know someone’s password and have their phone to be able to access their accounts. Using a physical device as a second factor is done because it offers protection from weaknesses of passwords, specifically that someone else can know your password. Theoretically, a second factor could be any form of authentication such as another password, however, all platforms require a second authentication factor to be a physical device, typically a phone.

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