alt Hacker NewsTOTP (thing that generates the 6 numbers every 30 seconds) whether that's a dedicated device (secure but very annoying) or a TOTP app on your phone (what most people use).
TOTP (thing that generates the 6 numbers every 30 seconds) whether that's a dedicated device (secure but very annoying) or a TOTP app on your phone (what most people use).
Password managers like 1Password also support TOTP, it doesn't have to be an app on your phone.