If you are an account owner and wish to force all other staff members to use the 2 Factor Authentication (2FA) please follow this tutorial. The 2FA requires the Google Authenticator app to be installed on each device accessing AthleteMonitoring:
Google Authenticator for Android
https://play.google.com/store/apps/details?id=com.google.android.apps.authenticator2&gl=U
Google Authenticator for iOS
https://apps.apple.com/us/app/google-authenticator/id388497605