Was Medici Group hit by ransomware?

Medici Group was listed by the thegentlemen ransomware operation (United States), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the thegentlemen ransomware group?

thegentlemen is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Medici Group breach?

thegentlemen published data attributed to Medici Group. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Medici Group

Claimed by Thegentlemen · listed 2 months ago

Age

since listed · data leaked

Status timeline

ListedApr 4, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: United States
Sector: Financial Services
Listed on leak site: Apr 4, 2026

About the victim

AI dossier — public-source company profile

Medici Group (themedicigroup.com) is a U.S.-based consulting firm that serves as the prime contractor for Via Renaissance, a subscription-based enterprise solution targeting government organizations. The company combines 20 years of research and 15 years of innovation consulting to deliver organizational performance improvement through its proprietary MOVES methodology, an AI coach (COSIMO), and performance engineering services. It also operates Medici Next, a parallel suite of solutions for industry clients.

Industry: Organizational Performance Consulting & Government Advisory
Employees: 11-50

Attack summary

Severity: high — Medici Group is a government contractor working with U.S. federal and public-sector organizations; confirmed data publication by the threat actor raises serious concerns about exposure of government-related business data, potentially including sensitive client information and internal consulting records tied to public-sector customers.

The threat group 'thegentlemen' claims to have obtained data from Medici Group and has published it (disclosed status: data_published); no ransom amount or specific data volume was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Business/consulting documents
Client organization data
Government contractor records
Internal performance engineering materials
Potentially employee and customer PII

What the group claims

themedicigroup.com zoominfo.com/c/medici-group-llc/348014372 Via Renaissance offers a subscription-based enterprise solution designed to enhance organizational performance through innovative methods developed over 20 years of research and 15 years of consulting. Their approach, known as MOVES, enables organizations to implement simple, actionable changes that foster high-performance behaviors and adaptability. Targeting government organizations, they provide tailored support and resources, including an AI Coach and performance engineering sessions, to facilitate sustained change

Sources

Victim sitethemedicigroup.com

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.

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Disclosure context

About thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 483 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post June 11, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

April 4, 2026Medici Group listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 483 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

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, Medici Group is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Medici Group 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 thegentlemen'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.