HackingFinancial ServicesFinanceStolen CredentialsData ExfiltratedCustomer Data InvolvedGovernment IDFinancial accountFinancial credentialsHighContained

Leonard Mulherin and Greene, PC

bd_03ac1ac952812a9b · schema v1 · pii pii-v1

Severity

High

Discovered

Dec 2, 2024

Filed

Aug 13, 2025

To disclose

36 weeks

Affected · nationwide

3,38522 in this filing

Linked

5 filings

Confidence

66%

Full breach record for Leonard Mulherin and Greene, PC →

Leonard Mulherin and Greene, PC, a financial services provider, experienced an external system breach (hacking) between November 21 and December 2, 2024. An unauthorized actor accessed an email account using valid credentials, potentially exfiltrating Social Security Numbers, financial account numbers, and access information. The incident was discovered on December 2, 2024. LMG engaged forensic investigators and deactivated the account. Notices were sent to 3,385 affected individuals (22 in Maine) on August 13, 2025, offering 12 months of credit monitoring.

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Maine clockDiscovered Dec 2, 2024 → Filed with AG Aug 13, 2025254d ✗ ME AG >90d36 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 · 11 days

discovery → filing · 36 weeks / 254 days

Nov 21, 2024

Begins

Dec 2, 2024

Discovered

Aug 13, 2025

Filed

vs. sector median

+28 wks slower

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

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_1ff38c2307091fc02025-08-13Verified
Indiana State AGbd_c49a46f152cce9282025-08-13Verified
Nebraska State AGbd_d80a406e76254c432025-08-13Verified
New Hampshire State AGbd_7e6a6b10a693b9582025-08-12 · +1dVerified

Name: Leonard Mulherin and Greene, PC
norm: leonard mulherin and greene

Name: Leonard Mulherin and Greene, PC
norm: leonard mulherin and greene
Industry: Financial Servicesllm

Discovered: Dec 2, 2024
Breach occurred: Nov 21, 2024 – Dec 2, 2024
Undetected for: 11 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 13, 2025
Affected individuals: 3,385state + nationwide
Data types: Government IDFinancial accountFinancial credentials
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Notified Maine Attorney General
Initial access: valid_credentials

During the incident: Contacted their internal Information Technology (IT) consulting firm confirm the security of their systems and deactivate the affected email account
Internally investigated to determine the nature and scope of the incident
Engaged and worked with a specialized third-party data forensics and cybersecurity firm to conduct a comprehensive review of the email account
Offered twelve (12) months of complimentary credit monitoring and identity theft restoration services through TransUnion
Changes made: Provided guidance on how to better protect against identity theft and fraud, including providing information on how to place a fraud alert and security freeze on one’s credit file
Provided contact details for the national consumer reporting agencies
Provided information on how to obtain a free credit report
Reminded affected individuals to remain vigilant for incidents of fraud and identity theft by reviewing account statements and monitoring free credit reports
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 36 weeks(254 days from discovery to filing)
Compliance flags: ME AG >90d · 254dME resident >180d · 254d
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: Dec 2, 2024
→ Filed with AG: Aug 13, 2025
254d 90 days ME AG >90d
Maine
Discovered: Dec 2, 2024
→ Notified: Aug 13, 2025
254d 180 days ME resident >180d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 2, 2024 → Filed with AG: Aug 13, 2025	254d	90 days	ME AG >90d
Maine	Discovered: Dec 2, 2024 → Notified: Aug 13, 2025	254d	180 days	ME resident >180d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

New Hampshire State AGAug 12 · first

Massachusetts State AG+1d

Indiana State AG+1d

Nebraska State AG+1d

Maine State AG+1d · this page

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/b0b23988-5d7a-4813-9632-70a7511710b5.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 13, 2025
Raw hash: 42ba6cde6d187421e00698efca1afe56ea4c1f364de2c31f7b984bbf0ab6e979

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityLeonard Mulherin and Greene, PC

Victim entityLeonard Mulherin and Greene, PC

Incidentdiscovered Dec 2, 2024

Stated responseContacted their internal Information Technology (IT) consulting firm confirm the security of their systems and deactivate the affected email account

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov