1Password introducing support for U2F security keys

You can now use U2F-compatible security keys as a second factor for your 1Password account. You can add your security keys now by heading over to the 1Password web app and visiting our new Two-Factor Authentication page. Offer expires June 12, 2019 at 8 a.m. PST.Get your YubiKey

How it works under the hood
WebAuthn is a pretty neat implementation based on public key crypto, and resolves security vulnerabilities like phishing.

Source: blog.1password.com