HackingEnergy & UtilitiesGovernmentUtilitiesData ExfiltratedCustomer Data InvolvedDelayed DiscoveryPIIIDENTITY_GOVERNMENTFINANCIAL_ACCOUNTMediumContained
MASSACHUSETTS MUNICIPAL WHOLESALE ELECTRIC CO.
bd_9100a37d91cd6d4f · schema v1 · pii pii-v1
Full breach record for MASSACHUSETTS MUNICIPAL WHOLESALE ELECTRIC CO. →MMWEC (municipal wholesale electric utility) discovered Feb 2, 2025 that an unknown actor accessed systems Jan 25–Feb 3, 2025, acquiring files with names, SSNs/TINs, and financial account info. Review completed June 10, 2025. One Maine resident notified July 21, 2025. Federal law enforcement notified. 24-month Experian credit monitoring offered.
Maine clockDiscovered Feb 2, 2025 → Filed with AG Jul 21, 2025169d ✗ ME AG >90d24 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.
This filing is one of 2 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (1) · sorted by filing gap
- bd_aeeed58579718a99New Hampshire State AGfiled 2025-07-21Verified
Source provenance
- Source URL
- https://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/0f58ee81-301f-4339-99be-5fc7e2e5e5c4.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Jul 21, 2025
- Raw hash
- aa16b58ec7faf5036083898afdcc39eb5c16f94ac1cc1843fd38030c866e8bd6
Reporting entity
- Name
- MASSACHUSETTS MUNICIPAL WHOLESALE ELECTRIC CO.norm: massachusetts municipal wholesale electric
- Domain
- mmwec.org
- Industry
- Other Government Entity
Victim entity
- Name
- MASSACHUSETTS MUNICIPAL WHOLESALE ELECTRIC CO.norm: massachusetts municipal wholesale electric
- Domain
- mmwec.org
- Industry
- Other Government Entity
- Industry
- Energy & UtilitiesllmGovernmentllm
Incident
- Discovered
- Feb 2, 2025
- Materiality determined
- Jun 10, 2025
- Notification sent
- Jul 21, 2025
- Affected individuals
- 1
- Data types
- PIIIDENTITY_GOVERNMENTFINANCIAL_ACCOUNT
- Attack vector
- Unauthorized Access
- MITRE ATT&CK
- T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
- Threat actor
- External
- Regulator citations
- Federal law enforcement notified
Compliance
- Time to disclose
- 24 weeks(169 days from discovery to filing)
- Compliance flags
- ME AG >90d · 169dME resident >60d · 169d
- 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: Feb 2, 2025→ Filed with AG: Jul 21, 2025169d 90 days ME AG >90d Maine Discovered: Feb 2, 2025→ Notified: Jul 21, 2025169d 60 days (analyst band; statutory cap is 30 days) ME resident >60d
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.