This add-on gives you data security and data privacy. Encrypt your entries at database level by adding encrypted fields (single line, paragraph, etc.) to your forms. Additionally, back end users can be prevented from accessing entries through the admin panel, based on their role. There is a really thorough description of this add-on on their codecanyon page.
The add-on can be used to help meet GDPR requirements.
Available at codecanyon from $28 for a regular license.
Codecanyon (Envato Market) items can receive updates through the Envato Market Plugin for WordPress.