Privacy by Design
Building privacy protections into a system's architecture from the start, rather than adding them afterward.
Related terms
Payment Records
Transaction and billing data containing financial identifiers that require anonymization before AI analysis.
Payroll Data
Employee compensation records classified as sensitive financial and personal information.
PHI (Protected Health Information)
Health-related information linked to a specific individual, protected under regulations such as HIPAA.
PII (Personally Identifiable Information)
Any data usable to identify a specific person — including names, IDs, and biometric data.
Privacy Engine
The underlying technology that detects, masks, and manages sensitive data across a product's different deployment modes.
Privacy Firewall
A security layer, often self-hosted, that filters and anonymizes sensitive data before it can reach an AI model.
See Privacy by Design in practice
Questa AI anonymizes sensitive data before it reaches any AI model — across documents and live prompts, with governance and data-residency control.