When a user with Multi-Factor Authentication (MFA) enabled attempts to sign in to access a private service embedded in a public web map—used as the default basemap for the map question in a public Survey123 form—the login fails with a misleading error message stating, "The username or password you entered is incorrect," even when the credentials are accurate.

Workaround

1. Access the survey by going to the ArcGIS Survey123 website (https://survey123.arcgis.com/) and signing in, then searching for the survey or opening a new tab and pasting a provided link to the survey.
2. The survey creator can enable the link for the survey to force submitters to open it in the ArcGIS Survey123 Field App, which forces the user to sign in correctly with MFA before filling out the survey.

Steps to Reproduce