Nexus information on: Azure Key Leakage - Storm-0558 Nexus awareness advisory on Microsoft’s update KB5014754
Smart ID Digital Access component user accounts are stored in a user database in Digital Access component (internal database), a PostgreSQL database bundled with Digital Access component. This is the default setting. See Digital Access component requirements and interoperability for information about supported external databases.
See here for information about how to configure all necessary databases in Digital Access: Configure all databases in Digital Access.