This is guidance for those who need to work on multiple computers or other devices, and need to log in using their SSO on these multiple devices.
Authy multiple device feature
The Authy authenticator app has a “Multi-Device” feature which makes it easy to authenticate on new devices, once you have Authy set up on your main device.
Microsoft Authenticator app (or any other authenticator app)
You can verify using the Microsoft Authenticator app, or any another authenticator app, on your mobile phone.
If you don’t have reliable Wi-Fi or mobile signal at every computer you need to work at, you can use a one-time passcode (OTP) to authenticate and this doesn’t require any Wi-Fi or mobile signal.
If you don’t have a mobile phone with you, then an alternative is to use a hardware token, which needs to be purchased through your normal route for purchasing IT equipment.