Social EngineeringHealthcareHealthcarePhishingTargetedPIIIdentity (basic)LowContained

Menninger Clinic

bd_ae4185c299e32c9f · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 30, 2021

Filed

Sep 24, 2021

To disclose

25 weeks

Affected

4state residents only

Linked

8 filings

Confidence

65%

Full breach record for Menninger Clinic →2 incidents on file

The Menninger Clinic notified Montana AG of a March 30, 2021 incident where employee email accounts were accessed without authorization, likely via phishing. Personal information (names) transmitted via email was potentially impacted. Menninger engaged forensic investigators, notified law enforcement (FBI, DHS), and offered identity protection services.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 25 weeks / 178 days

Mar 30, 2021

Discovered

Sep 24, 2021

Filed

vs. sector median

+13 wks slower

This filing is one of 8 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

HHS OCRbd_5f691a4f7353b06b2021-09-24Verified
Indiana State AGbd_63791bebcb25da112021-09-24Verified
Maine State AGbd_fde2a588649e877d2021-09-28 · +4dVerified
New Hampshire State AGbd_84f3fcdb9d649d1f2021-10-01 · +7dVerified

Show 3 more filings ↓up to 266d gap

Maine State AGbd_4f03df701911c5e82021-10-04 · +10dVerified
Massachusetts State AGbd_a025016eb43092c22021-10-04 · +10dVerified
Illinois State AGbd_a0d4e28b361fb2ae2021-01-01 · +266dCandidate

Name: Menninger Clinic
norm: menninger clinic
Domain: menningerclinic.org

Name: Menninger Clinic
norm: menninger clinic
Domain: menningerclinic.org
Industry: Healthcarellm

Discovered: Mar 30, 2021
Materiality determined: —
Notification sent: Sep 24, 2021
Affected individuals: 4state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: External
Regulator citations: Reported the incident to the Federal Bureau of InvestigationReported the incident to the Department of Homeland SecurityReported the incident to the Houston Police Department
Initial access: phishing_link

During the incident: Engaged a leading, independent cybersecurity firm to investigate
Reported the incident to the Federal Bureau of Investigation, the Department of Homeland Security, and the Houston Police Department
Offering complimentary identity protection services through IDX
Changes made: Implemented additional measures to enhance the security of its email environment
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 weeks(178 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 7 states

View merged incident ↗

Illinois State AGJan 1 · first

HHS OCR+266d

Indiana State AG+266d

Montana State AG+266d · this page

Maine State AG+270d

New Hampshire State AG+273d

Maine State AG+276d

Massachusetts State AG+276d

Pattern: first filing Jan 1 (IL), last Oct 4 (MA) — a 276-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://dojmt.gov/wp-content/uploads/OCP/Data-Breach-Notification-9.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 24, 2021
Raw hash: 767f17e44ed1a803eb764cdc9f333d1d0dea9b7cb7b8fb7e5cb3338064f2205a

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entityMenninger Clinic

Victim entityMenninger Clinic

Incidentdiscovered Mar 30, 2021

Stated responseEngaged a leading, independent cybersecurity firm to investigate

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov