HackingHealthcareHealthcareCustomer Data InvolvedPIIIdentity (basic)LowContained

Baltimore Medical System, Inc.

bd_6c660981bba7ec15 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Apr 2, 2026

To disclose

—

Affected

Not disclosed

Linked

5 filings

Confidence

65%

Full breach record for Baltimore Medical System, Inc. →

Baltimore Medical System, Inc. notified individuals that an unauthorized actor accessed and copied files between July 2, 2025, and July 20, 2025. The accessed files contained names and other personal information. The company engaged third-party cybersecurity specialists, secured its network, and notified law enforcement. Affected individuals are offered 12 months of identity monitoring. The notice specifically mentions Rhode Island residents, indicating multi-state impact.

J jump to incidentP pin to compareR raw source

Leak gap clock✗ Leak >180d

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline

Jul 2, 2025

Begins

Apr 2, 2026

Filed

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Sitebraincipherbd_c2398394790aae682025-09-16 · +197dVerified by operator
Leak Sitebraincipherbd_9f9870480fcc08532025-07-20 · +256dVerified by operator

Regulatory filings (2) · sorted by filing gap

Vermont State AGbd_0cb31b05431bbf7a2026-04-02Verified by operator
HHS OCRbd_11c81cf06cb0e1132025-12-12 · +111dVerified by operator

Name: Baltimore Medical System, Inc.
norm: baltimore medical system
Domain: bmsi.org

Name: Baltimore Medical System, Inc.
norm: baltimore medical system
Domain: bmsi.org
Industry: Healthcarellm

Discovered: —
Breach occurred: Jul 2, 2025 – Jul 20, 2025
Materiality determined: —
Notification sent: Apr 2, 2026
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Unknown
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External

During the incident: Launched an investigation with the assistance of third-party cyber security specialists
Assessed and secured computer network
Reviewed contents of relevant files for sensitive information
Notified law enforcement
Notified potentially affected individuals
Providing individuals with free resources and guidance, including identity monitoring services for 12 months through Cyberscout
Changes made: Reviewing existing policies and procedures
Implementing additional administrative and technical safeguards
Source: Quoted from the filing itself, not independently verified.

Compliance flags: Leak >180d
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 2 states

View merged incident ↗

HHS OCRDec 12 · first

Vermont State AG+111d

Massachusetts State AG+111d · this page

Pattern: first filing Dec 12 (MA), last Apr 2 (MA) — a 111-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://www.mass.gov/doc/2026-516-baltimore-medical-system-inc/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 2, 2026
Raw hash: 52a698130dbcda4146d02bbafc7dc355cc8c78ff7b1a555361408d3fe6979c4a

Linked disclosures

Ransomware claims (2)

Regulatory filings (2) · sorted by filing gap

Reporting entityBaltimore Medical System, Inc.

Victim entityBaltimore Medical System, Inc.

IncidentUnknown

Stated responseLaunched an investigation with the assistance of third-party cyber security specialists

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov