Topic Status: Some information in this topic is preview and subject to change in future releases. Preview information describes new features or changes to existing features in Microsoft SQL Server 2016 Community Technology Preview 2 (CTP2).
This rule determines whether the dbo role for a database is assigned to the sysadmin fixed server role and the database has its trustworthy bit set to ON.
If these conditions are met, a privileged database user can elevate privileges to the sysadmin role. In this role, the user can create and run unsafe assemblies that compromise the system.