MalwareEnergy & UtilitiesUtilitiesRansomwareData ExfiltratedRansom DemandedCustomer Data InvolvedEmployee Data InvolvedPIIIdentity (basic)LowContained

WESTERN NEW YORK ENERGY, LLC

bd_6366f9e842125314 · schema v1 · pii pii-v1

Severity

Low

Discovered

Apr 25, 2025

Filed

Jun 4, 2025

To disclose

6 weeks

Affected

4state residents only

Linked

5 records

Confidence

66%

Full breach record for WESTERN NEW YORK ENERGY, LLC →

Western New York Energy (WNYE) reported a ransomware attack discovered on April 25, 2025. The incident resulted in the exfiltration of employee personal information (PII), including names. WNYE engaged forensic investigators, notified the FBI, and contained the breach. Four New Hampshire residents were affected. Notifications were sent on June 4, 2025, offering credit monitoring and identity theft protection.

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Incident timeline

discovery → filing · 6 weeks / 40 days

Apr 25, 2025

Discovered

May 23, 2025

Scope determined

Jun 4, 2025

Filed

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

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siteinc_ransombd_71f1bd5ae13ac4642026-02-03 · +245dVerified by operator
Leak Sitesafepaybd_b4d7c8c015196bce2025-04-24 · +41dVerified by operator

Regulatory filings (2) · sorted by filing gap

Vermont State AGbd_116d91d1a18707382025-06-04Candidate
Massachusetts State AGbd_2ac9edac7dfeaee02025-06-05 · +1dVerified by operator

Name: WESTERN NEW YORK ENERGY, LLC
norm: western new york energy
Domain: wnyenergy.com

Name: WESTERN NEW YORK ENERGY, LLC
norm: western new york energy
Domain: wnyenergy.com
Industry: Energy & Utilitiesllm

Discovered: Apr 25, 2025
Materiality determined: May 23, 2025
Notification sent: Jun 4, 2025
Affected individuals: 4state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified the FBI and is fully cooperating with their investigation

During the incident: Engaged a specialized third-party forensic incident response to assist with securing the network environment and investigating the extent of unauthorized activity
Notified the FBI and is fully cooperating with their investigation
Offered free credit monitoring and identity theft protection through Sontiq
Changed passwords
Strengthened password requirements
Implemented stricter multi-factor authentication requirements
Wiped and rebuilt affected systems
Bolstered network security
Reviewed and altered policies, procedures, and network security software
Changes made: Changed passwords
Strengthened password requirements
Implemented stricter multi-factor authentication requirements
Wiped and rebuilt affected systems
Bolstered network security
Reviewed and altered policies, procedures, and network security software
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(40 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Vermont State AGJun 4 · first

New Hampshire State AGJun 4 · first · this page

Massachusetts State AG+1d

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://mm.nh.gov/files/uploads/doj/remote-docs/western-new-york-energy-20250604.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 4, 2025
Raw hash: d2fa1f9c24f3e53ad02608b957bb69be6346dec5298a6f2c18c1a0c67f271f26

Linked disclosures

Ransomware claims (2)

Regulatory filings (2) · sorted by filing gap

Reporting entityWESTERN NEW YORK ENERGY, LLC

Victim entityWESTERN NEW YORK ENERGY, LLC

Incidentdiscovered Apr 25, 2025

Stated responseEngaged a specialized third-party forensic incident response to assist with securing the network environment and investigating the extent of unauthorized activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov