KANSASHackingHealthcareHealthcareHealth (basic)Identity (basic)Government IDCriticalContained

Sunflower Medical Group

bd_3d351c7dbcb8fcb4 · schema v1 · pii pii-v1

Severity

Critical

Discovered

—

Filed

Mar 7, 2025

To disclose

—

Affected

220,968

Linked

12 filings

Confidence

69%

Full breach record for Sunflower Medical Group →

Sunflower Medical Group, P.A. reported to HHS on 2025-03-07 a Hacking/IT Incident affecting 220,968 individuals. Breached information located on Network Server. The cyberattack compromised PHI including names, DOBs, SSNs, driver's license numbers, claims, diagnoses, lab results, and medications. The entity deployed endpoint monitoring, implemented security enhancements, and retrained its workforce.

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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 7, 2025

Filed

—

Corroborated · see linked filings

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

This filing is one of 12 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siterhysidabd_e5d82dbddf2810722025-01-07 · +59dVerified by operator

Regulatory filings (9) · sorted by filing gap

Vermont State AGbd_0287312e9299b7db2025-03-07Verified
Nebraska State AGbd_11c58a3f9c5c03982025-03-07Verified
Maine State AGbd_b09dbb58ef0fad222025-03-07Verified
Massachusetts State AGbd_c63e9d10412ec1162025-03-07Verified

Show 5 more filings ↓up to 66d gap

Montana State AGbd_df8e68de2fa412282025-03-07Verified
California State AGbd_f42c06780ea08d462025-03-07Verified
New Hampshire State AGbd_a789960305d766a82025-03-10 · +3dVerified
Illinois State AGbd_dcfd70734cbc00352025-03-01 · +6dCandidate
Vermont State AGbd_6382a8ad836487d72025-05-12 · +66dVerified

Showing first 10 of 11 linked disclosures.

Name: Sunflower Medical Group
norm: sunflower medical
Domain: sunflowermed.com
Industry: Health Care Services

Name: Sunflower Medical Group
norm: sunflower medical
Domain: sunflowermed.com
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 220,968nationwide
Data types: Health (basic)Identity (basic)Government ID
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified HHSOCR provided the CE with technical assistance regarding the HIPAA Rules

During the incident: Notified HHS
Notified affected individuals
Notified the media
Deployed endpoint monitoring
Implemented security enhancements
Retrained its workforce to better protect its electronic PHI
Changes made: Deployed endpoint monitoring
Implemented security enhancements
Retrained its workforce to better protect its electronic 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.

Filing propagation · 10 filings · 9 states

View merged incident ↗

Illinois State AGMar 1 · first

Vermont State AG+6d

Nebraska State AG+6d

Maine State AG+6d

Massachusetts State AG+6d

Montana State AG+6d

California State AG+6d

HHS OCR+6d · this page

New Hampshire State AG+9d

Vermont State AG+72d

Pattern: first filing Mar 1 (IL), last May 12 (VT) — a 72-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 11 — the full spread may be wider.

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 7, 2025
Raw hash: 8a4187d6a86c1406bade434c43239f144af66d6ea2ae4a8622c388a46be356f5

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Linked disclosures

Ransomware claims (1)

Regulatory filings (9) · sorted by filing gap

Reporting entitySunflower Medical Group

Victim entitySunflower Medical Group

IncidentUnauthorized Access

Stated responseNotified HHS

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing