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Ransomware victim disclosure

All victims

Marshall & Stevens

Claimed by SilentRansomGroup · listed 4 months ago

3m
Age
since listed · data leaked

Status timeline

  1. ListedFeb 16, 2026
  2. Data leakeddate unknown

At a glance

Status
Data leaked
Listed on leak site
Feb 16, 2026

About the victim

AI dossier — public-source company profile

Marshall & Stevens is a professional services firm established in 1932, specializing in valuation and appraisal services for financial reporting, tax, litigation, and transaction purposes. The firm operates across the United States and has pioneered concepts in realistic and defensible valuations for a range of asset classes. It serves clients in financial services, corporate, and legal sectors.

Industry
Valuation & Appraisal Services
Employees
51-200
Founded
1932

Attack summary

Severity: high — Data has been published (disclosed status: data_published), confirming exfiltration of business data from a financial valuation firm likely containing sensitive client financial information and proprietary reports, though specific regulated PII at scale is not confirmed.

SilentRansomGroup claims to have exfiltrated data from Marshall & Stevens and has published the data, indicating confirmed exfiltration with no ransom amount stated.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Client financial records
  • Valuation reports
  • Business correspondence
  • Employee records
  • Proprietary methodologies

What the group claims

Marshall & Stevens was established in 1932. The firm has pioneered new concepts to provide realistic c…

Source

Indexed 4 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.

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Disclosure context

About SilentRansomGroup

Based on the limited available information, SilentRansomGroup is a relatively new ransomware operation that first emerged in May 2025, appearing to be financially motivated given their targeting patterns across multiple high-value sectors. The group's origin and affiliations remain unclear due to their recent emergence, though their diverse geographic targeting including the United States, Germany, Canada, and Russia suggests either a sophisticated operation or potential ransomware-as-a-service model. Their attack methodology and specific technical capabilities have not been extensively documented by major security researchers, though their targeting of business services, financial services, hospitality, and manufacturing sectors indicates they likely focus on organizations with both valuable data and ability to pay significant ransoms. With 93 known victims across multiple countries and sectors in a relatively short timeframe since May 2025, SilentRansomGroup has demonstrated notable activity levels, though specific high-profile campaigns or ransom amounts have not been publicly disclosed by CISA, FBI, or major threat intelligence firms. The group appears to remain active as of current reporting periods, though comprehensive technical analysis and attribution efforts by established security researchers are still developing given their recent emergence in the threat landscape. The group has been linked to 118 public disclosures across our corpus. First observed on a leak site on May 6, 2025; most recent post May 28, 2026. The operation is currently active.

Timeline of this disclosure

  • February 16, 2026Marshall & Stevens listed by SilentRansomGroupon 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, Marshall & Stevens is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

If your organisation is affected

A listing by SilentRansomGroup means Marshall & Stevens appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Monitor for the data appearing on SilentRansomGroup's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.

Marshall & Stevens data breach — SilentRansomGroup ransomware leak (2026) · Darkfield