// reference investigation

fischer-healthcare-breach — PHI exfil + audit gap cluster

Fischer Regional Clinic breach: DICOM PHI tags, Access registry export, M365 SharePoint downloads from 198.51.100.44, security EVTX gap with audit cleared, PACS SIEM silence, tampered audit trail export, chain-of-custody gaps. Fully synthetic.

what this proves

  • all eight healthcare-breach primary engines produce deterministic, fixture-locked output — verified by npm run check:flagship (280/280 fleet · 8 for this scenario).
  • every output is generated 100% locally in your browser — export audit logs, never upload PHI.
  • DICOM PHI tags, Access registry bulk exports, M365 SharePoint exfil, EVTX audit gaps, SIEM silence, tampered audit trails, and chain-of-custody gaps surface without sending evidence to a server.

primary engines locked to this fixture

build the case binder

runs all eight primary engines on the synthetic evidence zip and opens a self-contained html binder. uses the default binder renderer for healthcare-breach — no upload.

runs all 8 primary engines locally on the synthetic evidence zip · opens a self-contained html binder · no upload

download the synthetic evidence

MIT-licensed, fully synthetic. includes DICOM .dcm with PHI tags, Access .mdb patient registry, M365 unified audit json, security EVTX with audit cleared, SIEM ingestion csv, exported audit trail text, and chain-of-custody csv.

built deterministically from scripts/fixtures/build-fischer-healthcare-breach.mjs. seed: fischer-healthcare-breach:v1.

methodology

phi scope starts with what actually left the pacs — walk dicom metadata → access registry → ual exports → log gap → ingestion gap → authenticity → chain of custody. de-identified labels do not mean de-identified tags. read the full healthcare data breach guide →

after the playbook

run each primary locally — or export findings from the binder — then drop every csv/json into fatcousin-multi-tool-super-timeline-correlator. one timestamp-sorted timeline across dicom phi export, access registry bulk, m365 sharepoint download, security evtx gap, and chain-of-custody break — still zero upload.

synthetic scenario only · no real patients · no real facility · grading rubric

ready