What methods of encrypting the Ektron database have been tested and are supported?

Encrypting the Ektron databases further has not been tested within the Ektron CMS. Many forms of encryption are likely to cause issues within the CMS, but is is suspected that Transparent Data Encryption (TDE) would likely not impact the CMS. TDE encryption has not been tested within the CMS, but the following article has more information.

Transparent Data Encryption (TDE):
https://docs.microsoft.com/en-us/sql/relational-databases/security/encryption/transparent-data-encryption-tde