Disclosure context

About Sarcoma

Sarcoma is a relatively new ransomware group that emerged in October 2024, operating with apparent financial motivations and demonstrating a broad international targeting approach with at least 140 documented victims across multiple countries and industry sectors. The group's origin and affiliations remain unclear due to its recent emergence, with no publicly documented connections to established ransomware families or confirmation of whether they operate as an independent entity or through a Ransomware-as-a-Service model. Limited public information is available regarding Sarcoma's specific attack methodologies, initial access vectors, or technical capabilities, though their targeting patterns suggest opportunistic rather than highly selective victim selection across diverse industries including manufacturing, business services, agriculture and food production, and technology sectors. The group has shown a particular focus on victims in the United States while also maintaining operations against targets in Italy, Canada, Germany, and Australia, though no specific high-profile attacks or record ransom demands have been publicly documented by major security firms or law enforcement agencies. Given the group's recent emergence in late 2024, Sarcoma appears to remain active with no reported law enforcement disruptions or confirmed rebranding activities at this time. The group has been linked to 150 public disclosures across our corpus. First observed on a leak site on October 9, 2024; most recent post May 12, 2026. The operation is currently active.

Also tracked as: Sarcoma Ransomware Group.

Timeline of this disclosure

September 22, 2025Miami Management listed by Sarcomaon the group's public leak site

Data size: 2.4 TB

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, Miami Management 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

← All victims

Miami Management

Claimed by Sarcoma · listed 8 months ago

2.4 TB

Data size

Age

since listed · data leaked

Status timeline

Listed
Sep 22, 2025
Data leaked

At a glance

Group: Sarcoma
Status: Data leaked
Country: United States
Sector: Not Found
Listed on leak site: Sep 22, 2025
Data size: 2.4 TB

About the victim

AI dossier — public-source company profile

Miami Management, Inc. is a full-service property management company serving the residential, condominium, high-rise, and commercial markets in South Florida. They provide customized management plans, financial reporting, vendor negotiation, and maintenance solutions. Their client base includes homeowners' associations and large commercial properties throughout the South Florida region.

Industry: Residential & Commercial Property Management
Address: South Florida, United States

Attack summary

Severity: critical — 2.4 TB of data has been published by the threat actor from a property management company, likely containing large-scale PII (residents, homeowners, tenants), financial records, and potentially sensitive community association data across numerous South Florida properties.

The Sarcoma ransomware group claims to have exfiltrated 2.4 TB of data from Miami Management, with the disclosure status listed as data_published, indicating the stolen data has been released or made available.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Financial reports
Vendor contracts and negotiation records
Property management records
Client/homeowner association data
Maintenance and operational records
Community Association Manager documentation

What the group claims

Miami Management Miami Management, Inc. is a full-service property management company serving the residential, condominium, high-rise, and commercial markets in South Florida. They offer customized management plans, fully licensed Community Association Managers, and a suite of services including financial reporting, vendor negotiation, and maintenance solutions. With a focus on customer satisfaction and technological innovation, Miami Management aims to enhance the value and aesthetics of the properties they manage. Their clients range from homeowners' associations to large commercial properties seeking comprehensive and efficient management services.Geo: USA - Leak size: 2,4 TB Archive - Contains: Files

The leak post

captured from the group's site

Site: https://gyf.com.ar/ Industry: Business Services GEO: Argentina 
Site: www.propanelevac.ca Industry: Gas Stations, Retail GEO: Canada 
Site: www.mecmatica.it Industry: Provider of software solutions GEO: Italy 
Site: bedachungen-soellner.de Industry: Commercial & Residential Construction GEO: Germany 
Site: charterindustrial.com Industry: Industrial Machinery & Equipment GEO: USA 
Site: msbuilders.com Industry: Commercial & Residential Construction GEO: USA 
Site: thermofin.de Industry: Building Materials GEO: Germany 
Site: miamimanagement.com Industry: Business Services GEO: USA 
Site: kwg-senftenberg.de Industry: Business Services GEO: Germany 
Site: f1-generation.com Industry: Apparel & Accessories Retail GEO: Germany 
Site: inoxlaghi.com Industry: Industrial Machinery & Equipment GEO: Italy 
Site: maselli.com Industry: Manufacturing innovative optical technology GEO: Italy 
Site: metroheatingandair.com Industry: Commercial & Residential Construction GEO: USA 
Site: hv.com.co Industry: Food & Beverage GEO: Colombia 

```
Design and develop IT products and services for the financial market
```


```
Propane Levac inc. specializes in the distribution of propane across Ontari…

Source

Indexed 8 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.