How to Add and Remove (if you Lost Yubikey) 2Fa on Protonmail

We cover how to properly remove 2fa (2nd factor authentication) from your Protonmail account, if you have lost your Yubikey. It is vitally important to properly remove 2fa from your email account or you could lose access. This step by step procedure explains every detail. We walk through the process of using the Yubikey authenticator app, Yubikey security key and TOTP (Time based one-time passcodes). Multifactor authentication using a security key is your best protection against being hacked. Proton mail is a privacy focused encrypted secure email service. It is vitally important that you download your one-time backup codes, when you add 2FA to Proton mail.