Disclosure context

About weyhro

Weyhro is an emerging ransomware group that was first observed in March 2025, appearing to be primarily financially motivated based on their targeting patterns and operational behavior. The group's origin and affiliations remain unclear due to their recent emergence, with insufficient public documentation from major threat intelligence sources to confirm their country of origin, potential links to established ransomware families, or whether they operate under a Ransomware-as-a-Service model. With only 14 documented victims since their March 2025 debut, specific details about their attack methodology, initial access vectors, encryption techniques, and data exfiltration practices have not been comprehensively documented by CISA, FBI, Mandiant, or other reputable security researchers. The group has demonstrated a geographically diverse targeting approach, primarily focusing on victims in the United States, Germany, Canada, Barbados, and Italy, with a sector preference for manufacturing, financial services, business services, and technology organizations. Given the group's recent emergence and limited victim count, no major high-profile campaigns, record ransom demands, or law enforcement actions have been publicly reported. Weyhro appears to remain active as of current reporting, though their operational tempo and long-term sustainability remain to be determined given the limited intelligence available on this nascent threat actor. The group has been linked to 14 public disclosures across our corpus. First observed on a leak site on March 6, 2025; most recent post August 11, 2025. The operation is currently inactive.

Timeline of this disclosure

August 11, 2025Community Services of Missouri listed by weyhroon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Public Sector sector, which has 259 disclosures indexed across all operators we track. Geographically, Community Services of Missouri is reported in United States, a country with 7,392 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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Community Services of Missouri

Claimed by weyhro · listed 9 months ago

Age

since listed · data leaked

Status timeline

Listed
Aug 11, 2025
Data leaked

At a glance

Group: weyhro
Status: Data leaked
Country: United States
Sector: Public Sector
Listed on leak site: Aug 11, 2025

About the victim

AI dossier — public-source company profile

Community Services of Missouri is one of Missouri's largest providers of state-approved alcohol, drug, and driving-related education and monitoring programs. Operating across multiple counties in Missouri with a corporate office in St. Peters, the organization offers SATOP, substance abuse treatment, defensive driving, electronic monitoring, and other court-mandated rehabilitation services.

Industry: Public Sector - Court-Ordered Rehabilitation & Education Services
Address: 1175 Cave Springs Estates Drive, St. Peters, MO 63376

Attack summary

Severity: high — Confirmed data publication by ransomware operator. Community Services of Missouri processes sensitive personal data for court-ordered clients including individuals in substance abuse and criminal justice systems, representing vulnerable populations with heightened privacy concerns. The breach of such data at scale poses significant regulatory and privacy risks.

The weyhro group claims to have breached Community Services of Missouri. The leak post indicates data publication but provides no specific details on whether data was encrypted, exfiltrated, or both, or what data categories were compromised.

high

Data the group says was taken

AI dossier — extracted from the leak post

client enrollment records
court-ordered program participation data
payment information
personal identifying information (likely)

Original description

AI-summarised, not from the leak post

Community Services of Missouri is an organization that provides a range of services to aid individuals and communities. These services include driver improvement programs, drug education and prevention programs, substance abuse traffic offender programs, and probation services. The organization focuses on fostering better understanding of safety, well-being, and responsible decision-making. Community Services of Missouri operates in various locations across the state of Missouri.

Sources

Victim sitedwiprograms.com
Leak posthttps://weyhro.hk//leaks/dwiprograms

Source

Indexed 9 months 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.