Phi Who Accessed What And When

Phi Who Accessed What And When is not just a compliance checkbox. It is the core of knowing exactly which user, system, or process touched Protected Health Information, what they did with it, and the exact timestamp it happened. Without this visibility, you are blind to breaches, misconfigurations, and misuse.

In healthcare systems, PHI audit logging must be precise. Every read, write, update, export, or delete is a recorded event. The “who” is often a user ID, service account, or API key. The “what” is the resource name or PHI fields accessed—full name, birth date, lab results, insurance data. The “when” is an immutable record in UTC, preferably down to the millisecond. Storing this in append-only logs or write-once media prevents tampering.

HIPAA security rules demand these PHI access logs. Beyond policy, engineering teams use them to detect unauthorized activity, investigate suspicious access, verify minimal data use, and fulfill legal audit requests. Missing or incomplete entries not only risk compliance fines but also undermine incident response.

A robust “Phi Who Accessed What And When” solution integrates with authentication systems, database query layers, object storage, and API gateways. Every path to PHI must generate structured, queryable events. Index logs by user ID and timestamp for fast forensic search. Correlate with network telemetry and application logs to reconstruct complete session histories. Use strong identity mapping to track shared device access.

Performance is critical. Logging should add negligible latency. Secure transport (TLS 1.2+) and encryption at rest (AES-256) protect logs from interception or theft. Role-based controls restrict log viewing to authorized security or compliance staff. This prevents audit records themselves from leaking sensitive data.

Once deployed, monitor logs continuously. Create alerts for abnormal volumes, unusual access times, or unexpected PHI fields in queries. Feed anomalies into SIEM tools for cross-system correlation. Review integrity reports to ensure no log entries are missing or altered.

Building and maintaining this capability manually is labor-intensive. Hoop.dev streamlines this entire process—capturing, storing, and surfacing PHI access history without adding friction to your existing systems. See who accessed what and when in real time. Try it now on hoop.dev and see it live in minutes.