Disclosure context

About worldleaks

Based on the limited available data, worldleaks is a recently emerged ransomware group that was first observed in May 2025 and appears to be primarily financially motivated, having claimed 134 victims in a relatively short timeframe since its emergence. The group's origin and organizational structure remain unclear, with no publicly documented information from major cybersecurity firms or law enforcement agencies regarding their country of origin, potential affiliations, or operational model. Their targeting patterns indicate a focus on English-speaking countries, particularly the United States, United Kingdom, and Canada, with additional activity observed in Germany and Japan, while their sector targeting shows a preference for healthcare, technology, manufacturing, and consumer services organizations. Due to the group's recent emergence and limited public documentation by established threat intelligence sources, specific details about their attack methodologies, encryption techniques, extortion tactics, and notable campaigns have not yet been comprehensively analyzed or reported by organizations such as CISA, FBI, or major cybersecurity research firms. The group appears to remain active as of the most recent observations, though comprehensive threat intelligence profiling awaits further analysis and documentation by established cybersecurity authorities. The group has been linked to 155 public disclosures across our corpus. First observed on a leak site on May 18, 2025; most recent post May 12, 2026. The operation is currently active.

Timeline of this disclosure

March 20, 2026Matthews Real Estate Investment Services listed by worldleakson the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Financial Services sector, which has 516 disclosures indexed across all operators we track. Geographically, Matthews Real Estate Investment Services 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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Matthews Real Estate Investment Services

Claimed by worldleaks · listed 2 months ago

Age

since listed · data leaked

Status timeline

Listed
Mar 20, 2026
Data leaked

At a glance

Group: worldleaks
Status: Data leaked
Country: United States
Sector: Financial Services
Listed on leak site: Mar 20, 2026

About the victim

AI dossier — public-source company profile

Matthews Real Estate Investment Services is a leading U.S. commercial real estate firm operating under the Matthews™ brand, with 30+ offices nationwide and over $88.37 billion in transactions. The company offers investment sales, debt and structured financing, leasing, auction services, and 1031 exchange programs. It serves clients across all sectors of the commercial real estate market with a combination of national reach and local market expertise.

Industry: Commercial Real Estate Brokerage & Investment Services

Attack summary

Severity: medium — Data is claimed to have been published, indicating exfiltration rather than encryption-only, but no data size, data type, or proof count is provided, and the leak post content appears AI-generated with no specific evidence of regulated or sensitive data (e.g., PII, financial records) at scale.

The worldleaks group claims to have published data belonging to Matthews Real Estate Investment Services, with the disclosure status listed as data_published. The leak post does not specify whether encryption, exfiltration, or both occurred, and no ransom amount or data size has been stated.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Undisclosed company data

Original description

AI-summarised, not from the leak post

Matthews Real Estate Investment Services is a leading brokerage company in the U.S. specialized in commercial real estate. The company offers a wide range of services such as leasing, property management, investment sales, debt financing and more. They aim to create long-term wealth for their clients by providing customizable strategies and innovative services in all sectors of real estate investment market.

Sources

Victim sitematthews.com
Leak posthttps://worldleaksartrjm3c6vasllvgacbi5u3mgzkluehrzhk2jz4taufuid.onion/companies/4429398516

Source

Indexed 2 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.