The present disclosure describes a computer-implemented method that includes: populating a metadata shell database with one or more hash values, wherein: each hash value corresponds to a verified installation of a database system, and the metadata shell database is maintained within a locked-down environment on an enterprise network; and monitoring metadata information of one or more database systems on the enterprise network based on periodically accessing metadata information of one or more database systems; and determining whether a database system on the enterprise network has been compromised based on a hash value of the metadata information of the database system and the one or more hash values from the metadata shell database.