MASSACHUSETTS MUNICIPAL WHOLESALE ELECTRIC CO.
ent_019df1be763aa96b746e21a04c81db1f
Disclosures
5
State AG · Leak Site · 4 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
511
as filed · State AG MA
Leak-site claims
2
unverified actor claims
Identity resolution
- Canonical name
- MASSACHUSETTS MUNICIPAL WHOLESALE ELECTRIC CO.
- Normalized
- massachusetts municipal wholesale electric— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- 549300CFLHW0OYBX9C89
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- mmwec.org
Disclosure history (5)newest first
- Maine State AGas victim2025-07-21
Massachusetts Municipal Wholesale Electric Company (MMWEC) reported an external system breach occurring between Jan 25 and Feb 3, 2025. Discovered Feb 2, 2025, the incident involved unauthorized access to systems containing names, SSNs/TINs, and financial account info. One Maine resident was notified on July 21, 2025. MMWEC engaged federal law enforcement and provided 24 months of credit monitoring via Experian.
- New Hampshire State AGas victim2025-07-21
Massachusetts Municipal Wholesale Electric Company (MMWEC) notified the NH AG of a data event affecting 3 NH residents. Unauthorized access occurred Jan 25–Feb 3, 2025. Data exposed: names, SSNs/TINs, financial account info. MMWEC discovered suspicious activity on Feb 2, 2025, engaged law enforcement, and offered 24 months of credit monitoring via Experian.
- Massachusetts State AGas victim2025-07-21
Massachusetts Municipal Wholesale Electric Company reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-07-21. 511 Massachusetts residents were affected.
- GLOBALLeak Siteas victim2025-02-04
In the early 1970s, MMWEC worked to gather and focus the collective strength of municipal utilities on issues and developments that were threatening the viability of public power in Massachusetts. Joint action led to the acceptance of municipal utilities into the New England Power Pool in 1973, giving municipals the right to joint ownership in the large, regional power plants under development by private utilities.
- GLOBALLeak Siteas victim2025-02-02
In the early 1970s, MMWEC worked to gather and focus the collective strength of municipal utilities on issues and developments that were threatening the viability of public power in Massachusetts. Joint action led to the acceptance of municipal utilities into the New England Power Pool in 1973, giving municipals the right to joint ownership in the large, regional power plants under development by private utilities.