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Ransomware Victim Energy

Massachusetts Municipal Wholesale Electric

Ransomware attack by Blacksuit ยท Disclosed April 4, 2025 ยท ๐Ÿ‡บ๐Ÿ‡ธ United States

mmwec.org

Date Disclosed
Apr 4, 2025
2025
Threat Group
Blacksuit
165 total victims
Country
๐Ÿ‡บ๐Ÿ‡ธ United States
Industry
Energy

Incident Analysis

Massachusetts Municipal Wholesale Electric was targeted by Blacksuit ransomware, one of the most active ransomware groups in our database with 165 confirmed victims globally. The attack was disclosed on April 4, 2025, when Massachusetts Municipal Wholesale Electric appeared on the group's dark web leak site.

Massachusetts Municipal Wholesale Electric is based in United States , operating in the Energy sector. United States ranks #1 globally for ransomware attacks, with 8,463 victims in our database.

Sector context: Energy sector attacks can have critical infrastructure implications. Ransomware on operational technology (OT) networks can disrupt power generation and distribution, elevating the urgency of recovery.

Blacksuit typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats โ€” paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Jun 10, 2026 12:01 UTC.

Frequently Asked Questions

Was Massachusetts Municipal Wholesale Electric attacked by ransomware?

Yes. Massachusetts Municipal Wholesale Electric was listed as a victim of the Blacksuit ransomware group on April 4, 2025. The organisation is based in United States and operates in the Energy sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Massachusetts Municipal Wholesale Electric?

Massachusetts Municipal Wholesale Electric was attacked by Blacksuit ransomware. Blacksuit is one of the most active ransomware groups, having claimed 165 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Massachusetts Municipal Wholesale Electric ransomware attack occur?

The ransomware attack on Massachusetts Municipal Wholesale Electric was disclosed on April 4, 2025. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the Massachusetts Municipal Wholesale Electric ransomware attack?

The specific data stolen from Massachusetts Municipal Wholesale Electric has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Energy organisation, Massachusetts Municipal Wholesale Electric likely held sensitive business data, client information, and operational records.

How can organisations protect against Blacksuit attacks?

To defend against Blacksuit and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.