A finding from a STIG evaluation, CCE-19832-5 reports that the [master] database should be encrypted with a Database Master Key using an encrypted password that meets DoD standards.
This a result of an AppDetective scan; it states:
Resource key 'database_containing_encrypted_key' not found.=[master].
I am not deliberately storing anything in the master database.
I've encrypted all user databases but my question is: do you encrypt the system databases, specifically master? I am using TDE with SQL Server 2012.