Prevent data storage device circuitry swap

A device comprising:

• a data storage medium adapted to store an encrypted key and data content encrypted using the encrypted key, wherein the encrypted key is encrypted using a root key;
• and
• a removable control circuit including a first key,
• wherein if the first key corresponds to the root key, the removable control circuit allows access to the encrypted data content,
• wherein if the first key does not correspond to the root key, the removable control circuit prevents access to the encrypted data content,
• wherein the data storage medium is adapted to store an indication that the data content includes protected data content, and
• wherein at least a portion of the data content is unencrypted data content and wherein the removable control circuit is further adapted to delete the unencrypted data content if the first key does not correspond to the root key.

A method comprising:

• generating an encrypted key using a root key;
• encrypting data content using the encrypted key;
• storing the encrypted data content and the encrypted key on a storage medium;
• if a key of a removable circuit corresponds to the root key, providing access to the encrypted data content;
• if the key of the removable circuit does not correspond to the root key, preventing access to the encrypted data content;
• and
• wherein at least a portion of the data content is unencrypted data content and wherein the removable control circuit is further adapted to delete the unencrypted data content if the key of the removable control circuit does not correspond to the root key.