Cyber Threat Intelligence
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Ransomware Victim Government & Defense

Brooklyn Defender Services

Ransomware attack by Insomnia · Disclosed July 24, 2026 · 🇺🇸 United States

www.bds.org

Date Disclosed
Jul 24, 2026
2026
Threat Group
Insomnia
52 total victims
Country
🇺🇸 United States
Industry
Government & Defense

ThreatAI Analysis

Compiled from this incident record and the threat intelligence profile for Insomnia. Figures and technique mappings are quoted from the source data, not inferred.

About Brooklyn Defender Services

Brooklyn Defender Services is a public defense office providing free, client-centered representation and advocacy in and out of court, protecting people from loss of freedom, family separation, and serious legal harm by unjust, racist systems.

Source record: ransomware.live

About the Insomnia group

Insomnia is a data-theft and extortion group that emerged in October 2025, targeting primarily US-based healthcare organizations — stealing patient files and threatening public exposure rather than encrypting files — and avoiding former Soviet states, consistent with Russian-speaking cybercrime norms. Insomnia has listed 49 victims since February 2025.

Incident Analysis

Brooklyn Defender Services was targeted by Insomnia ransomware, one of the most active ransomware groups in our database with 52 confirmed victims globally. The attack was disclosed on July 24, 2026, when Brooklyn Defender Services appeared on the group's dark web leak site.

Brooklyn Defender Services is based in United States , operating in the Government & Defense sector. United States ranks #1 globally for ransomware attacks, with 9,534 victims in our database.

Sector context: Organisations in this sector hold valuable data and operational systems that ransomware groups seek to exploit for financial gain through encryption and data exfiltration.

Insomnia 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 — 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: Sep 19, 2026 08:00 UTC.

Frequently Asked Questions

Was Brooklyn Defender Services attacked by ransomware?

Yes. Brooklyn Defender Services was listed as a victim of the Insomnia ransomware group on July 24, 2026. The organisation is based in United States and operates in the Government & Defense sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Brooklyn Defender Services?

Brooklyn Defender Services was attacked by Insomnia ransomware. Insomnia is one of the most active ransomware groups, having claimed 52 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Brooklyn Defender Services ransomware attack occur?

The ransomware attack on Brooklyn Defender Services was disclosed on July 24, 2026. 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 Brooklyn Defender Services ransomware attack?

The specific data stolen from Brooklyn Defender Services 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 Government & Defense organisation, Brooklyn Defender Services likely held sensitive business data, client information, and operational records.

How can organisations protect against Insomnia attacks?

To defend against Insomnia 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.