X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
Two Factor Auth (2FA) - List of websites and whether or not they support 2FA
Rapid 2FA - A painless way to add two-factor authentication to your site
TypingDNA Authenticator - 2FA codes in your browser, secured by the way you type
Google Titan - A 2FA device to protect yourself from hackers
2FA to Tray - Copy 2FA tokens on macOS in a tap