# How do companies protect proprietary data when using public AI APIs?

_Last updated: 2026-07-20_  
_Reviewed by: Jason Burns, Editorial Steward_  
_Published by: AIDirectAnswers.com · Licensed under Citation License 1.0_

## Short answer

Companies protect proprietary data with API contracts that prohibit training on inputs, deployment in private or enterprise tenants, on-prem or VPC hosting, encryption in transit and at rest, and per-request redaction of sensitive fields.

---

_Canonical: https://aidirectanswers.com/answers/how-do-companies-protect-proprietary-data-when-using-public-ai-apis_  
_Author: [Jason Burns](https://www.linkedin.com/in/jason-randolph-burns), Editorial Steward_  
_Published: 2026-07-20 · Modified: 2026-07-20_  
_License: [Citation License 1.0](https://aidirectanswers.com/license)_  
© 2026 Adolicious LLC