Was Chonburi Provincial Administration hit by ransomware?

Chonburi Provincial Administration 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 Chonburi Provincial Administration breach?

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

Ransomware victim disclosure

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Chonburi Provincial Administration

Claimed by Thegentlemen · listed 4 months ago

Age

since listed · data leaked

Status timeline

ListedFeb 6, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Thailand
Sector: Public Sector
Listed on leak site: Feb 6, 2026

About the victim

AI dossier — public-source company profile

Chonburi Provincial Administration is the regional government body responsible for administering Chonburi Province in eastern Thailand. It oversees public services, local governance, infrastructure, and civic affairs for the province, which includes major urban and industrial areas such as Pattaya and the Eastern Economic Corridor. The organisation operates under the Thai Ministry of Interior.

Industry: Provincial Government Administration
Address: Chonburi Province, Thailand

Attack summary

Severity: high — The victim is a provincial government body, and the status is 'data_published', indicating confirmed exfiltration and release of data. Government administrative records likely contain citizen PII and sensitive public-sector information, warranting a high severity rating. Critical is withheld due to inability to verify the actual data contents from the inaccessible leak post.

The group 'thegentlemen' claims to have attacked Chonburi Provincial Administration with a disclosed status of data_published, suggesting exfiltration and publication of data; however, the leak post content is inaccessible (bot-protection page) and no specific data volume or ransom amount was stated.

high

Data the group says was taken

AI dossier — extracted from the leak post

Government administrative records
Potentially citizen PII
Provincial operational documents

What the group claims

chon.go.th official website for the Chonburi Provincial Administration in Thailand. This local government organization manages the Chonburi Province, an area that includes the popular city of Pattaya. Its core functions involve providing local civil services, infrastructure planning, public health initiatives, and promoting regional tourism and the economy.

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 sitechon.go.th
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 6, 2026Chonburi Provincial Administration 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 Public Sector sector, which has 260 disclosures indexed across all operators we track. Geographically, Chonburi Provincial Administration is reported in Thailand, a country with 45 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Chonburi Provincial Administration 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.