Implement data encryption at rest and in transit, use opaque models, and rely on user opt-out for consent.

Ensure data anonymization, provide model explainability tools, and implement a robust consent management system where users must opt-in explicitly.

Store data in plain text, use black-box models, and assume consent unless users opt-out.

Encrypt data only in transit, use models without transparency, and manage consent through a default opt-out system.