Survey123 supports common security models that are used by ArcGIS Online and ArcGIS Enterprise. For an overview of the security capabilities available for the ArcGIS platform components, as well as current best practices, see ArcGIS security.

Typically, users sign in by typing a username and password. Some organizations may require users to use alternative sign-in methods that include additional security. Security models supported by Survey123 include the following:

When typical sign in does not work, signing in via a web browser that is external to Survey123 can be used. This can be used when a PKI with Windows Authentication is required.