IOWASocial EngineeringHealthcareHealthcarePhishingStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDHealth (basic)HighResolved

Grand River Medical Group

bd_a7d66cecca5a4d51 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Feb 12, 2021

To disclose

—

Affected

37,423

Linked

4 filings

Confidence

97%

Full breach record for Grand River Medical Group →

Grand River Medical Group (Iowa) reported to HHS on 2021-02-12 a Hacking/IT Incident (email phishing) affecting 37,423 individuals. An employee was the victim of a phishing attack that compromised PHI including names, addresses, Social Security numbers, dates of birth, claims information, medications, and other treatment information. No business associate was involved. The CE notified HHS, individuals, and media; offered credit monitoring; strengthened technical safeguards; and retrained staff on email security. OCR provided HIPAA Security Rule technical assistance.

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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

Feb 12, 2021

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 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Maine State AGbd_b1dfa9db3f8119582021-02-12Candidate
Montana State AGbd_8ce8af789d4021bc2021-02-08 · +4dCandidate
Indiana State AGbd_e7e1c1c71ed3b46c2021-02-08 · +4dVerified

Name: Grand River Medical Group
norm: grand river medical
Industry: Health Care Services

Name: Grand River Medical Group
norm: grand river medical
Industry: Health Care Services
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 37,423nationwide
Data types: Identity (basic)Government IDHealth (basic)
HHS breach type: Hacking / IT incident
Where the data lived: Email
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1566 PhishingT1078 Valid Accounts
Threat actor: External
Regulator citations: OCR provided the CE with technical assistance regarding its HIPAA Security Rule obligations.
Initial access: phishing_link

During the incident: Notified HHS, affected individuals, and the media
Provided complimentary credit monitoring services
Strengthened technical safeguards
Retrained staff on email security
Changes made: Strengthened technical safeguards
Retrained staff on email security
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 · 4 filings · 4 states

View merged incident ↗

Montana State AGFeb 8 · first

Indiana State AGFeb 8 · first

Maine State AG+4d

HHS OCR+4d · this page

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: Feb 12, 2021
Raw hash: dc4b60758f840bdde532889e5f9ee9c696036478000cbd273dea196d0d924a07

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Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityGrand River Medical Group

Victim entityGrand River Medical Group

IncidentUnauthorized Access

Stated responseNotified HHS, affected individuals, and the media

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing