Privacy by Design: Proactive Approach to Data Protection
Privacy by Design (PbD) principle: Privacy built into app from architecture stage, not added later. GDPR requires PbD. Advantages: User trust, regulatory compliance, competitive advantage. Process: Privacy Impact Assessment early, minimal data collection, encryption by default, user control.
Privacy by Design Architecture Principles
1. Proactive, Not Reactive: Prevent privacy issues before they occur. 2. User-Centric: Give users control over their data. 3. Transparent: Privacy policies clear, decisions explainable. 4. Secure: Encryption everywhere. 5. Minimal Collection: Collect only necessary data. 6. Accountable: Document privacy decisions.
Privacy Impact Assessment (PIA)
Required before processing personal data. Document: Data types, processing purposes, recipients, retention, risks, mitigations. Cost: $10-30K. Timeline: 2-4 weeks.
Technical Implementation
Encryption: AES-256 at rest, TLS 1.3 in transit. Minimization: Collect only essential data. Deletion: Auto-delete after retention period. Anonymization: Remove PII from analytics. User Controls: Export, delete, restrict processing. Access Control: Role-based permissions.
Cost Impact
Privacy by design adds 10-15% to development (encryption, audit trails, user controls). Saves money long-term (avoid GDPR fines, user trust).
