During an audit, the auditor uncovers sensitive data regarding the AI system's algorithms and their...

The correct principle is Confidentiality.

ISO 19011:2018 – Clause 4(e) states that auditors must respect the confidentiality of information acquired during the audit and use it only for audit purposes. This includes sensitive or proprietary data, such as AI algorithms, models, and proprietary decision logic.

The PECB Lead Auditor Guide – Domain 3 reinforces that any internal or sensitive company information discovered must be safeguarded and never disclosed without authorization.