Was Terminal 21 hit by ransomware?

Terminal 21 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 Terminal 21 breach?

thegentlemen published data attributed to Terminal 21. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Terminal 21

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: Thailand
Sector: Transportation/Logistics
Listed on leak site: Apr 4, 2026

About the victim

AI dossier — public-source company profile

Terminal 21 is a themed shopping complex located in Bangkok, Thailand, designed around the concept of global shopping experiences. The mall draws inspiration from famous shopping streets and landmarks from eight major cities worldwide, offering a wide variety of merchandise, food, and lifestyle options under one roof. It operates as a destination retail and dining venue catering to diverse consumer lifestyles.

Industry: Retail Shopping Mall
Address: Bangkok, Thailand

Attack summary

Severity: medium — Data has been published (not merely announced), indicating at least some exfiltration occurred, but the leak post provides no detail on the type, volume, or sensitivity of the data, and no ransom amount or data size was stated, preventing a higher classification.

The group 'thegentlemen' claims to have attacked Terminal 21 and has published data (disclosed status: data_published), though the leak post does not specify whether encryption or exfiltration occurred, nor does it detail the volume or nature of the data involved.

medium

What the group claims

terminal21.co.th zoominfo.com/c/terminal-21/425950251 Terminal21 is a unique shopping complex that brings together the essence of global shopping experiences under one roof, catering to diverse lifestyles. The mall features a themed design inspired by famous shopping streets and landmarks from eight major cities around the world. With a focus on convenience and a wide variety of merchandise and food options, Terminal21 aims to provide an extraordinary shopping experience.

Sources

Victim siteterminal21.co.th

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, 2026Terminal 21 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 Transportation/Logistics sector, which has 847 disclosures indexed across all operators we track. Geographically, Terminal 21 is reported in Thailand, a country with 45 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Terminal 21 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.