Was Amata hit by ransomware?

Amata was listed by the thegentlemen ransomware operation (Thailand), 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 Amata breach?

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

Ransomware victim disclosure

← All victims

Amata Corporation PCL.

listed as Amata · Claimed by Thegentlemen · listed 4 months ago

Age

since listed · data leaked

Status timeline

ListedFeb 26, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Thailand
Sector: Manufacturing
Listed on leak site: Feb 26, 2026

About the victim

AI dossier — public-source company profile

Amata Corporation PCL. is Southeast Asia's leading private developer and operator of industrial estates, branded as 'Industrial Cities', with operations across Thailand, Vietnam, Laos, and Myanmar. Founded in 1989 and headquartered in Chonburi, Thailand, the company plans, develops, manages, and markets industrial real estate sites providing integrated utilities, infrastructure, and facilities. The group comprises 45 subsidiaries, serves approximately 1,600 tenants and residents, and has developed over 150 sq.km of land across 13 locations.

Industry: Industrial Estate Development & Management
Address: Amata City Chonburi, Chonburi, Thailand
Employees: 350
Founded: 1989

Attack summary

Severity: high — Data is listed as published by the threat actor against a major publicly listed industrial estate developer with 1,600+ tenants including manufacturers; potential exfiltration of business-sensitive data, tenant PII, and commercial agreements at significant scale. Full proof content could not be verified due to the inaccessible leak post.

The ransomware group 'thegentlemen' claims to have attacked Amata Corporation PCL. and lists the disclosure status as data_published, indicating data exfiltration has occurred; however, the leak post itself was inaccessible (blocked by a bot-verification page), providing no verifiable detail on the specific data claimed or scope of encryption.

high

Data the group says was taken

AI dossier — extracted from the leak post

Corporate business data
Tenant/resident records
Subsidiary operational data
Internal documents

What the group claims

amata.com zoominfo.com/c/amata-corporation-public-company-ltd/2754121 Amata Corporation PCL. is a leading industrial estate developer in Southeast Asia, providing full-service industrial parks for global manufacturing companies. They focus on creating sustainable and innovative industrial environments with high-quality amenities and smart energy solutions. Their extensive locations across Thailand, Vietnam, Laos, and Myanmar offer businesses optimal logistical access to major infrastructure

The leak post

captured from the group's site

Gentlecloud Protection 🛡️ Gentlecloud Verifying your browser... Initializing security checks... I'm not a bot

Sources

Victim siteamata.com
Leak posthttp://tezwsse5czllksjb7cwp65rvnk4oobmzti2znn42i43bjdfd2prqqkad.onion

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 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

February 26, 2026Amata 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 Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, Amata is reported in Thailand, a country with 45 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Amata 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.