HackingHealthcareProfessional ServicesHealthcareData ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDFinancial accountCredentialsCriticalContained

Healthcare Services Group, Inc

bd_2976d9ebf2d37285 · schema v1 · pii pii-v1

Severity

Critical

Discovered

Oct 7, 2024

Filed

Aug 25, 2025

To disclose

46 weeks

Affected · nationwide

624,4963,871 in this filing

Confidence

64%

Healthcare Services Group, Inc. (HSGI) disclosed an external system breach (hacking) occurring between September 27 and October 3, 2024. HSGI discovered the unauthorized access on October 7, 2024. The incident compromised personal information including names, SSNs, driver's license numbers, financial account info, and full access credentials for approximately 624,496 individuals nationwide, including 3,871 Maine residents. HSGI notified federal law enforcement, implemented additional safeguards, and offered 12 months of credit monitoring through Experian.

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Maine clockDiscovered Oct 7, 2024 → Filed with AG Aug 25, 2025322d ✗ ME AG >90d46 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

undetected · 10 days

discovery → filing · 46 weeks / 322 days

Sep 27, 2024

Begins

Oct 7, 2024

Discovered

Aug 25, 2025

Filed

vs. sector median

+33 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed624,496 affectedView incident

Name: Healthcare Services Group, Inc
norm: healthcare services group
Domain: ascension.org

Name: Healthcare Services Group, Inc
norm: healthcare services group
Domain: ascension.org
Industry: HealthcarellmProfessional Servicesllm

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: 624,496state + nationwide
Data types: Identity (basic)Government IDFinancial accountCredentials
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 ChannelT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified federal law enforcementProviding written notice of this incident to relevant state regulators
Initial access: exploit_public_facing

During the incident: Moved quickly to investigate and respond to the incident
Assessed the security of HSGI systems
Identified potentially affected individuals
Notified federal law enforcement regarding the event
Providing access to credit monitoring services for twelve (12) months, through Experian
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
Providing written notice to the three major credit reporting agencies, Equifax, Experian, and TransUnion
Changes made: Implementing additional safeguards and training to its employees
Implemented additional security measures to mitigate risk associated with this event
Review and enhance existing policies and procedures relating to data protection and security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 46 weeks(322 days from discovery to filing)
Compliance flags: ME AG >90d · 322dME resident >180d · 322dME CRA notice due
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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Oct 7, 2024
→ Filed with AG: Aug 25, 2025
322d 90 days ME AG >90d
Maine
Discovered: Oct 7, 2024
→ Notified: Aug 25, 2025
322d 180 days ME resident >180d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Oct 7, 2024 → Filed with AG: Aug 25, 2025	322d	90 days	ME AG >90d
Maine	Discovered: Oct 7, 2024 → Notified: Aug 25, 2025	322d	180 days	ME resident >180d

Status: No extraction artifact recorded for this disclosure.

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.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/9a82ac2b-5379-462d-acd6-26a3b3bd0b30.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 25, 2025
Raw hash: ab91cd9fa93448169914ab3ddef2fefe0f45090cb26ebff7912e76744aacdade

Reporting entityHealthcare Services Group, Inc

Victim entityHealthcare Services Group, Inc

Incidentdiscovered Oct 7, 2024

Stated responseMoved quickly to investigate and respond to the incident

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov