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Data Fiduciary
Kestrova Health · Hyderabad cluster (fictional)
Overview

Synthetic tenant: Kestrova Health (fictional), 442 receipts. Sixty days of activity are generated deterministically and anchored to the current hour, so expiry and breach clocks are live. Every receipt is signed at load with Ed25519 key ksv-47c7d4987f3a and re-verified by the same code the public verify API runs. Consents you sign in the patient journeys appear at the top of the registry, held only in your browser.

Breach command
lowClosedSeverity set by rule matrixDemo tenant incident

INC-2026-019: Discharge summary emailed to the wrong patient

Kestrova Kukatpally · became aware 20 Sep 2026, 11:30 am IST · about 1 person

A discharge summary for 1 patient was emailed to the wrong recipient, another patient with a similar name, from a ward desk. The recipient confirmed deletion in writing within 2 hours.

The four clocks

  • Report to CERT-In

    CERT-In Directions, 28 Apr 2022: within 6 hours

    Not a reportable cyber incident on these facts; decision recorded

  • Initial intimation to the Board

    DPDP Rule 7(2)(a): without delay. Internal target 24h

    Done 20 Sep, 4:30 pm

  • Intimation to each affected patient

    DPDP Rule 7(1): without delay. Internal target 48h

    Done 20 Sep, 2:30 pm

  • Detailed report to the Board

    DPDP Rule 7(2)(b): within 72 hours

    Done 22 Sep, 1:30 pm

Rule-matrix triage

Severity
low
Board intimation
Required (every breach)
Patient intimation
Required (every breach)
CERT-In
Assess and record
health recordscontact infodischarge summaries

Deterministic rule matrix. Exposure vector: contained loss (encrypted, wiped or misdirected) (matched "wrong recipient", "emailed to"). Scale: 1 parsed from the text. Severity = vector 0 + scale 0 points = LOW. Board and patient intimation are not scored: DPDP requires both for every personal data breach. Factor coverage 100% is how many of the three matrix inputs the text supplied, not a confidence score.

AI second opinion

Advisory only. A model reads the incident; its answer is validated, then set beside the matrix. The matrix decides severity and no model decides a legal duty.

Immediate actions

  • highContain: isolate affected systems and revoke exposed credentials · CISO
  • mediumAssess whether the incident is CERT-In reportable; record the decision · CISO
  • highIntimate the Data Protection Board without delay: nature, extent, timing, location, likely impact (Rule 7(2)(a)) · DPO
  • highIntimate each affected patient without delay, in plain language and their language (Rule 7(1)) · DPO
  • mediumFile the detailed report with the Board within 72 hours: causes, mitigation, remediation, patient intimations (Rule 7(2)(b)) · DPO

Drafts for DPO review

The hospital name, contact and triage come from the server. Drafts are never sent; filing and sending are out of scope here.

Initial intimation to the Board

Notice to affected patients

Closure record

Findings: Autocomplete picked a same-surname address. Recipient deletion confirmed in writing.

Change made: Outbound clinical email now requires the MRN in the subject to match the recipient record.