HackingHealthcareHealthcareStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDPHIHealth (basic)MediumContained

Medical Express Ambulance Inc.

bd_cf549989ad2ba1ac · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 18, 2024

Filed

Apr 14, 2025

To disclose

13 months

Affected

31state residents only

Linked

6 filings

Confidence

66%

Full breach record for Medical Express Ambulance Inc. →2 incidents on file

Medical Express Ambulance Inc. D/B/A MedEx Ambulance notified Montana residents of a data breach discovered on March 18, 2024. Unauthorized access to systems resulted in the potential acquisition of PII and PHI, including names, SSNs, driver's licenses, and health insurance info. The company engaged forensic investigators, reset credentials, and notified law enforcement. Notices were mailed starting April 14, 2025, offering 12 months of credit monitoring.

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Incident timeline

discovery → filing · 13 months / 392 days

Mar 18, 2024

Begins

Mar 18, 2024

Discovered

Apr 14, 2025

Filed

vs. sector median

+43 wks slower

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Vermont State AGbd_b8194707753b0e0b2025-04-14Verified
Nebraska State AGbd_f2db12a91b155bb52025-04-14Verified
Massachusetts State AGbd_f65170d9266271902025-04-14Verified
New Hampshire State AGbd_589e70d75d907c312025-04-21 · +7dVerified

Show 1 more filing ↓up to 17d gap

Illinois State AGbd_7723fa4962b22a662025-05-01 · +17dVerified

Name: Medical Express Ambulance Inc.
norm: medical express ambulance

Name: Medical Express Ambulance Inc.
norm: medical express ambulance
Also named: Medical Express Ambulance Inc.dba oflegal entity
MedEx Ambulancedba oftrade name
Industry: Healthcarellm

Discovered: Mar 18, 2024
Breach occurred: Mar 18, 2024
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 14, 2025
Affected individuals: 31state-resident count only
Data types: Identity (basic)Government IDPHIHealth (basic)
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: notified law enforcement
Initial access: valid_credentials

During the incident: Disconnected all access to the network
Engaged a specialized third-party cybersecurity firm
Engaged IT personnel to assist with securing the environment
Conducted a comprehensive forensic investigation
Changed administrative credentials
Notified law enforcement
Enhanced its network security
Implemented an organization-wide credential reset of all users
Restructured and enhanced security systems
Upgraded our data management software
Engaged a third-party vendor to review the data that was compromised
Engaged a third-party notice vendor to assist with the mailings, call center, and provide identity theft protection services
Changes made: Restructured and enhanced security systems
Upgraded our data management software
Enhanced its network security to prevent a similar incident from occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 months(392 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Vermont State AGApr 14 · first

Nebraska State AGApr 14 · first

Massachusetts State AGApr 14 · first

Montana State AGApr 14 · first · this page

New Hampshire State AG+7d

Illinois State AG+17d

Pattern: first filing Apr 14 (VT), last May 1 (IL) — a 17-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/2025/04/Consumer-notification-letter-22.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 14, 2025
Raw hash: 3c95ad67c0e82377fecbdd827cc41337ab86a0f31e61d214c799b78f091ba8cf

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityMedical Express Ambulance Inc.

Victim entityMedical Express Ambulance Inc.

Incidentdiscovered Mar 18, 2024

Stated responseDisconnected all access to the network

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov