oscar-privacy-boundaries

Local-first processing keeps Protected Health Information (PHI) entirely in the browser without uploading data to a server. This approach reduces network exposure by enforcing strict data handling rules, encryption, and consent-driven persistence directly on the client.

Web Worker security for sensitive health data requires sanitized error messages and strict memory cleanup to prevent data leakage. Workers must follow safe error handling protocols that do not expose raw Protected Health Information (PHI) during processing.

Securely integrating Fitbit OAuth tokens in a local-first health application requires encrypting the tokens and applying scoped access with minimal retention. This ensures that external API credentials do not compromise local Protected Health Information (PHI).

Ensuring only user-selected data is included in document exports and printouts requires implementing strict export safeguards. The application must filter the output to explicitly exclude any non-selected Protected Health Information (PHI) from the generated file or print job.

Testing guidelines for applications processing sensitive health data mandate using synthetic data to avoid real Protected Health Information (PHI). Developers must use mock datasets to ensure compliance with strict data handling rules and logging restrictions during development.

You should not use server-side processing for health data analysis when strict local-first boundaries are required to prevent exposing Protected Health Information (PHI). Keeping data in the browser avoids network transmission risks and satisfies no-upload compliance rules.