Disclosure context

About ms13089

ms13089 is an emerging ransomware group first observed in December 2025, appearing to be financially motivated based on their limited operational profile. The group's origin and affiliations remain unknown due to their recent emergence and limited public documentation, with no confirmed information available regarding their operational model or geographic base. Given the lack of detailed technical analysis from major security firms, their specific attack methodologies, initial access vectors, and encryption techniques have not been publicly documented by reputable threat intelligence sources. The group has targeted three known victims across Germany, Luxembourg, and Italy, though no high-profile campaigns or notable incidents have been reported by CISA, FBI, or established security researchers. As of early 2025, ms13089 appears to remain active but maintains a low profile with minimal public intelligence available about their operations. The group has been linked to 4 public disclosures across our corpus. First observed on a leak site on December 18, 2025; most recent post May 5, 2026. The operation is currently active.

Timeline of this disclosure

May 5, 2026brittanyresidential.com listed by ms13089on the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Consumer Services sector, which has 396 disclosures indexed across all operators we track. Geographically, brittanyresidential.com is reported in US, a country with 2,713 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.

Ransomware victim disclosure

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brittanyresidential.com

Claimed by ms13089 · listed 16 days ago

15d

Age

since listed · data leaked

Status timeline

Listed
May 5, 2026
Data leaked

At a glance

Group: ms13089
Status: Data leaked
Country: US
Sector: Consumer Services
Listed on leak site: May 5, 2026

About the victim

AI dossier — public-source company profile

Brittany Residential, Inc. is a US-based organization that provides residential and support services for individuals with developmental disabilities. The company focuses on person-centered, compassionate care aimed at empowering clients to live fulfilling lives. No further details on scale or location are available from the post or public site.

Industry: Residential Care Services for Individuals with Developmental Disabilities

Attack summary

Severity: critical — The victim serves individuals with developmental disabilities, meaning exfiltrated data almost certainly includes sensitive PII and protected health/care information about a vulnerable population, qualifying as regulated sensitive data at potentially significant scale.

The ransomware group ms13089 claims to have attacked Brittany Residential, Inc. and has published data (disclosed status: data_published), suggesting exfiltration of company and potentially client records, though specific data types and volume are not detailed in the post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Client personal information
Care and support records
Employee records
Internal business documents

What the group claims

At Brittany Residential, Inc., we believe in creating a world where individuals with developmental disabilities are supported, valued, and empowered to live fulfilling lives. Our dedicated team provides compassionate, person-centered care that...

The leak post

captured from the group's site

MS13-089 Blog MS13-089 LEAKED DATA Contacts brittanyresidential.com (USA, Ohio) published files At Brittany Residential, Inc., we believe in creating a world where individuals with developmental disabilities are supported, valued, and empowered to live fulfilling lives. Our dedicated team provides compassionate, person-centered care that promotes independence, dignity, and inclusion. PUBLISHED 0% MORE uro.com (USA, Virginia) published files Virginia Urology (VU) has a long history of providing quality care to the Greater Richmond metro area since 1929. This practice prides itself on its strong commitment to the community’s urological needs by recruiting highly... PUBLISHED 70% MORE dgpcommercialisti.it (Italy, Reggio Emilia) published files Aree di specializzazione: contabilità, bilanci, dichiarazioni fiscali, incarichi di sindaco e revisore legale, consulente tecnico d’ufficio, ristrutturazioni e operazioni straordinarie. Consulenza Societaria, ordinaria e straordinaria, ivi comprese PUBLISHED 100% MORE [email protected] Close

Sources

Victim sitebrittanyresidential.com
Leak posthttp://msleakjir7pxbe6onlqe5uwgvdmy6nq4mnwfy7ojswbhnleenm77vgad.onion/BRI/index.html

Source

Indexed 16 days ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.