+1000000

Any news about plan to add U2F ? It will be very useful feature.

Please add support for Yubikey's. Preferably U2F mode, but YubicoOTP will work too.

seems like "no answer" after over half year in the subject is answer enough. pity the forum support is that diconnected to the userbase already. U2F shouldn't take that long to implement.

2FA is a strength of ProtonMail- particularly not implementing it via SMS, but relying on software authentication. However, situations may arise when the user is attempting to access email from a new computer- and does not have a software authenticator available. Or the user desires the extra security of a physical key. U2F Fido support through a hardware key seems like an ideal way of implementing this feature.

I recently bought a yubikey and would love to use it with protonmail. Thank you

Trezor U2F!!!!!

Proton Technologies: Please add hardware U2F, such as YubiKey, for better security. I am not a paid user because of the absence of this feature. If you disagree with this request, please make a public statement. Many users of ProtonMail have stated since 2015 that they desire such a feature. Thank you.

PLEASE add Yubikey integration. I have and use it anywhere where available.
We use Protonmail because it is secure. Yubikey integration is mandatory to make it even more secure.
I don't need a paid account right now but Yubikey integration could help me make the decision to go pro.

+1 for U2F support (have Trezor) - living up to your own high security standards

This is definitely a prefered way to use 2FA. having U2F support for security keys would be amazing.

This is not a duplicate entry. U2F is a recognized standard, Yubikeys are devices that support the standard.

Please implement U2F for second factor authentication. Phones can be hacked a lot easier than Yubikeys and similar devices.

What folks need to realize is that OTP is still a password, and as such is still vulnerable to man-in-the-middle / phishing attacks. Google realized a long time ago that a one-time-password can be phished just as easily as a long lived password, and swapped for a long-lived bearer token (i.e. cookie). FIDO / U2F / UAF / WebAuthN is resistant to phishing / MitM. In addition to U2F/WebAuthN in the browser - would also like to see UAF for the mobile app, utilizing private key in the TEE/SE + biometric/PIN to unlock. PayPal, BoA and AliPay all do this today.

This is a no brainer - especially with most major browsers (Chrome, Edge, Firefox) all committing to support #WebAuthN. Chrome already has U2F support and FF Quantum now has WebAuthN enabled. PLEASE PLEASE PLEASE make this an option. As other posters have stated, this is something I would pay money to use!

I will upgrade to a paid account the day I learn this is available.

C'mon.. U2F for trezor/yubikey is surely on the way

I'm starting to use Yubikey for everything. Need FIDO U2F support please.

please add trezor support

Come on guys. If our mobile dies we will endup not been able to login. Yubikey shall be a must now days

U2F / FIDO For Yubikey and Trezor will be Amazing