HackingHealthcareHealthcareData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountHealth (basic)HighContained

Healthcare Services Group, Inc.

bd_dc5f8588b13682f7 · schema v1 · pii pii-v1

Severity

High

Discovered

Oct 7, 2024

Filed

Sep 2, 2025

To disclose

47 weeks

Affected

3,628state residents only

Linked

16 filings

Confidence

66%

Full breach record for Healthcare Services Group, Inc. →

Healthcare Services Group, Inc. (HSGI) notified the Rhode Island Attorney General of a data event affecting 3,628 RI residents. Unauthorized access occurred between Sept 27 and Oct 3, 2024; discovered Oct 7, 2024. Exposed data included names, SSNs, driver’s licenses, financial/health info. HSGI notified law enforcement, offered 12 months of Experian credit monitoring, and implemented additional security safeguards.

J jump to incidentP pin to compareR raw source

Rhode Island clock✗ RI AG >45d47 weeks discovery → filing

Incident timeline

undetected · 10 days

discovery → filing · 47 weeks / 330 days

Sep 27, 2024

Begins

Oct 7, 2024

Discovered

Sep 2, 2025

Filed

vs. sector median

+35 wks slower

This filing is one of 16 about the same incident.View merged incident

A leak claim by underground about this victim predates this filing by 311 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Texas State AGbd_3c672d9cc70092502025-08-26 · +7dVerified
South Carolina State AGbd_7ca401b90e6988952025-08-26 · +7dVerified
New Hampshire State AGbd_2ff23a494fd0eb292025-08-25 · +8dVerified
Nebraska State AGbd_3d13d9954098db8f2025-08-25 · +8dVerified

Show 6 more filings ↓up to 8d gap

Oregon State AGbd_4999f3b28468b2fa2025-08-25 · +8dVerified
Washington State AGbd_4e84de9fffe373992025-08-25 · +8dVerified
Montana State AGbd_662a2f295d85c2662025-08-25 · +8dVerified
Vermont State AGbd_82a73cadd59014cd2025-08-25 · +8dVerified
Delaware State AGbd_846def17f6a32ff92025-08-25 · +8dVerified
Indiana State AGbd_e2af2ec1ac336df22025-08-25 · +8dVerified

Showing first 10 of 15 linked disclosures.

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Healthcare Services Group, Inc.
norm: healthcare services
Domain: hcsgcorp.com
Industry: Healthcarellm

Discovered: Oct 7, 2024
Breach occurred: Sep 27, 2024 – Oct 3, 2024
Undetected for: 10 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 25, 2025
Affected individuals: 3,628state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1119 Automated Collection
Threat actor: External
Regulator citations: Notified federal law enforcement regarding the eventProviding written notice of this incident to relevant state regulators, as necessary

During the incident: Notified federal law enforcement regarding the event
Providing access to credit monitoring services for twelve (12) months, through Experian, to individuals whose personal information was potentially affected by this incident, at no cost to these individuals
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing written notice of this incident to relevant state regulators, as necessary, and to the three major credit reporting agencies, Equifax, Experian, and TransUnion
Changes made: Working to implement additional safeguards and training to its employees
Reviewed and enhanced existing policies and procedures relating to data protection and security
Implemented additional security measures to mitigate risk associated with this event and to help prevent similar future incidents
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 47 weeks(330 days from discovery to filing)
Compliance flags: RI AG >45dLeak >180d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 11 states

View merged incident ↗

New Hampshire State AGAug 25 · first

Nebraska State AGAug 25 · first

Oregon State AGAug 25 · first

Washington State AGAug 25 · first

Montana State AGAug 25 · first

Vermont State AGAug 25 · first

Delaware State AGAug 25 · first

Indiana State AGAug 25 · first

Texas State AG+1d

South Carolina State AG+1d

Rhode Island State AG+8d · this page

Pattern: first filing Aug 25 (NH), last Sep 2 (RI) — a 8-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 15 — the full spread may be wider.

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://riag.ri.gov/media/7536/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 2, 2025
Raw hash: 0803889aa360d945b94b4879e59b0caeaf6c8605b9a0e1c89919b1f558b75aac

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityHealthcare Services Group, Inc.

Incidentdiscovered Oct 7, 2024

Stated responseNotified federal law enforcement regarding the event

ComplianceRI AG >45d

Extraction provenanceno artifact recorded

Source provenanceriag.ri.gov