HackingHealthcareHealthcareStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDMediumActive

Rocky Mountain Gastroenterology

bd_e533d69040c25242 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 13, 2024

Filed

Jan 15, 2025

To disclose

18 weeks

Affected

3state residents only

Linked

7 records

Confidence

66%

Full breach record for Rocky Mountain Gastroenterology →

Rocky Mountain Gastroenterology Associates, PLLC notified Montana residents of a data security incident discovered on September 13, 2024. Unauthorized access to employee files containing names, addresses, DOBs, and SSNs occurred. The company engaged forensic experts and is offering 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >90d18 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

discovery → filing · 18 weeks / 124 days

Sep 13, 2024

Discovered

Jan 15, 2025

Filed

vs. sector median

+9 wks slower

This filing is one of 7 records about the same incident.View merged incident

A leak claim by trinity about this victim was first seen 122 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (3)

Leak Sitemeowbd_9fca488ade88c4ff2024-10-13 · +93dVerified by operator
Leak Siteransomhubbd_67f4f5408beee7962024-09-28 · +108dVerified
Leak Sitetrinitybd_b46575107c88e7172024-09-15 · +121dVerified

Regulatory filings (3) · sorted by filing gap

Nebraska State AGbd_5fb0b0794e457ef02025-01-15Candidate
Indiana State AGbd_8ada4905789be4312025-01-15Verified
HHS OCRbd_d4038f0e9b58c13a2024-11-13 · +63dVerified

Name: Rocky Mountain Gastroenterology
norm: rocky mountain gastroenterology
Domain: rockymountaingastro.com

Name: Rocky Mountain Gastroenterology
norm: rocky mountain gastroenterology
Domain: rockymountaingastro.com
Industry: Healthcarellm

Discovered: Sep 13, 2024
Materiality determined: —
Notification sent: Jan 13, 2025
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Took steps to secure our systems
Launched investigation with the assistance of third party forensic experts
Offering you access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing you with proactive fraud assistance
Changes made: Implemented additional safeguards and technical security measures to further protect and monitor our systems
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 weeks(124 days from discovery to filing)
Compliance flags: Leak >90d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

HHS OCRNov 13 · first

Nebraska State AG+63d

Indiana State AG+63d

Montana State AG+63d · this page

Pattern: first filing Nov 13 (CO), last Jan 15 (MT) — a 63-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/2025/03/Consumer-notification-letter-159.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 15, 2025
Raw hash: 233fca30de5d4e30a881293e8ccadcdfe726b692b02b80d310b01feda5b9e447

Linked disclosures

Ransomware claims (3)

Regulatory filings (3) · sorted by filing gap

Reporting entityRocky Mountain Gastroenterology

Victim entityRocky Mountain Gastroenterology

Incidentdiscovered Sep 13, 2024

Stated responseTook steps to secure our systems

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancedojmt.gov