How to use authenticator apps like Google Authenticator to protect yourself online - Vox
Text-based 2FA, where a text with a six-digit code is sent to your phone to verify your identity, is better known and better understood because it uses technology most of us use all the time anyway. But it’s a technology that wasn’t meant to serve as an identify verifier, and it’s an increasingly insecure option as hackers continue to find ways to exploit it.
That’s why I recommend using an authenticator app, like Google Authenticator, instead. Don’t let the name intimidate you: There are a few extra steps involved, but the effort is worth it.