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 424 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post May 18, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

May 6, 2026Manhattan Fire Safety Corp listed by thegentlemenon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 2,640 disclosures indexed across all operators we track. Geographically, Manhattan Fire Safety Corp is reported in US, a country with 2,713 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

Manhattan Fire Safety Corp

Claimed by thegentlemen · listed 15 days ago

14d

Age

since listed · data leaked

Status timeline

Listed
May 6, 2026
Data leaked

At a glance

Group: thegentlemen
Status: Data leaked
Country: US
Sector: Business Services
Listed on leak site: May 6, 2026

About the victim

AI dossier — public-source company profile

Manhattan Fire Safety Corp (MFS) is a licensed fire alarm and security services firm based in New York City, operating for over 15 years. The company employs NICET-certified engineers and licensed fire alarm contractors who design, install, inspect, and maintain fire alarm and ARC systems in compliance with FDNY requirements. MFS also provides IT communication systems, structured cabling, and security solutions with 24/7 monitoring to commercial and industrial clients across NYC and surrounding areas.

Industry: Fire Alarm & Security Systems Installation and Services
Address: New York City, NY, USA

Attack summary

Severity: high — Data has been confirmed published (not merely listed), suggesting successful exfiltration and release. MFS serves commercial and industrial clients and likely holds sensitive client site data, security system configurations, and potentially regulated business PII; published data from a fire/security contractor could pose downstream physical security risks.

The group 'thegentlemen' claims to have published data belonging to Manhattan Fire Safety Corp, with the disclosure status recorded as 'data_published', indicating exfiltration and subsequent release of company data. No specific ransom amount or data size was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Company business records
Client/contract information
Employee or personnel data
Internal communications or documents

What the group claims

mfsnyc.com rocketreach.co/mfs-nyc-profile_b4779b17fc5cb39e Manhattan Fire & Security (MFS) is a licensed fire alarm and security services firm based in New York City, with over 15 years of experience serving commercial and industrial clients across NYC and surrounding areas. The company employs NICET-certified engineers and licensed fire alarm contractors who design, install, inspect, and maintain fire alarm and ARC (Auxiliary Radio Coverage) systems fully in compliance with FDNY requirements. Beyond fire safety, MFS also provides IT communication systems, structured cabling, and security solutions, offering 24/7 monitoring and maintenance to eliminate downtime and ensure continuous operational safety for businesse

Sources

Victim sitemfsnyc.com

Source

Indexed 15 days 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.