MINNESOTAAccidentalHealthcareHealthcareMisdeliveryCustomer Data InvolvedPHIHealth (basic)Identity (basic)MediumContained

Mayo Clinic

bd_4735477b0edfd08b · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Mar 28, 2025

To disclose

—

Affected

1,869

Confidence

69%

Full breach record for Mayo Clinic →7 incidents on file

Mayo Clinic reported to HHS on 2025-03-28 a Unauthorized Access/Disclosure affecting 1869 individuals. Breached information located on Email. A workforce member emailed PHI (clinical and demographic) to a personal email address and further disclosed it to unauthorized individuals. The CE implemented safeguards and retrained staff.

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HIPAA clock✓ HHS notified

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

⚠ No discovery dateThe OCR public portal omits the discovery date, so the 60-day notification clock cannot be evaluated from this source — only that the filing was submitted.

Incident timeline — partial

? — ?

Breach window unknown

Mar 28, 2025

Filed

—

No filing yet · watching

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1,869 affectedView incident

Name: Mayo Clinic
norm: mayo clinic
Domain: mayoclinic.org
Industry: Health Care Services

Name: Mayo Clinic
norm: mayo clinic
Domain: mayoclinic.org
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 1,869nationwide
Data types: PHIHealth (basic)Identity (basic)
HHS breach type: Unauthorized access or disclosure
Where the data lived: Email
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1530 Data from Cloud Storage Object
Threat actor: Internal
Regulator citations: Notified HHS

During the incident: Notified HHS and the affected individuals
Implemented additional administrative, technical, and security safeguards
Retrained workforce members to better protect its PHI
Changes made: Implemented additional administrative, technical, and security safeguards
Retrained workforce members to better protect its PHI
Source: Quoted from the filing itself, not independently verified.

Compliance flags: HHS notified
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.
Clock breakdown: Statute Window Elapsed Threshold Status
HIPAA
Discovered: not extracted
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: not extracted → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://ocrportal.hhs.gov/ocr/breach/breach_report.jsf
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: Mar 28, 2025
Raw hash: f4f22001db40a007e8916e4a663bf3cfce2bf6e5674a4ff6ff380b1f85f199c6

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Reporting entityMayo Clinic

Victim entityMayo Clinic

IncidentUnauthorized Access

Stated responseNotified HHS and the affected individuals

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing