Twitter has long had dual security features based on physical keys like Yubikey or Google’s Titan key. You can log in with that key on your phone (assuming the key works on your phone). For several months. But what if you need to manage your company’s PR Twitter account on the go? Or, more generally, what if you had a USB-A key for desktop and an NFC key for mobile use?
In both cases, the Twitter app for Android now supports logging into one or more accounts via multiple physical security keys such as USB, Bluetooth or NFC. Twitter, of course, announced the change via Tweet and it will appear live in the latest version of the app.
Secure your account (and its replacement) with multiple security keys. You can now register and log in using more than one physical key on both mobile and web.
Coming Soon: You have the option to add and use your security key as your only authentication method without using any other method.
— Twitter Support (@TwitterSupport) March 15, 2021
You need to log in with your current Twitter password, but Twitter has said that soon you will be able to log in with only the security key activated. That said, it’s just one level of security, but it could be more secure than the same password you used in 24 other services.