2fa

I found some tips: Authenticating your users via Microsoft using Firebase B4J Tutorial [B4x]Google Authenticator OTP (others will do, too) complete example with code Android Code Snippet [B4x] Use OTP in your apps (php code also included) B4R Tutorial ESP32: OTP/2FA example There is also this...

This example generates a OTP/2FA ("One Time Password") as you know it when you login to a website and you get a 6 digit code via sms. It changes every 30 seconds. How it works: - as it is time based, you need a internet connection. Please add your wifi/router credentials - time is retrieved...