Was Garuda Indonesia Airlines hit by ransomware?

Garuda Indonesia Airlines was listed by the thegentlemen ransomware operation (Indonesia), 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 Garuda Indonesia Airlines breach?

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

Ransomware victim disclosure

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Garuda Indonesia Airlines

Claimed by Thegentlemen · listed 4 months ago

Age

since listed · data leaked

Status timeline

ListedFeb 21, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: Indonesia
Sector: Transportation/Logistics
Listed on leak site: Feb 21, 2026

About the victim

AI dossier — public-source company profile

Garuda Indonesia is the national flag carrier airline of Indonesia, headquartered at Soekarno-Hatta International Airport near Tangerang. The airline operates domestic and international routes across Asia, the Middle East, Australia, and Europe, and is a member of the SkyTeam airline alliance. It is one of the largest airlines in Southeast Asia by fleet size and passenger volume.

Industry: Commercial Aviation & Air Transportation
Address: Garuda City, Soekarno-Hatta International Airport Area, Tangerang 19120, Indonesia
Employees: 7000
Founded: 1949

Attack summary

Severity: high — Garuda Indonesia is a major national flag carrier with millions of passengers; a confirmed data publication event against a company of this scale and public trust likely exposes significant PII (passenger records, employee data) and sensitive operational data, warranting a high severity classification even without full proof file enumeration.

The group 'thegentlemen' claims to have exfiltrated data from Garuda Indonesia Airlines and has published the data, though the leak post content was obstructed by a bot-verification page preventing full detail extraction. No ransom amount or specific data volume was stated.

high

Data the group says was taken

AI dossier — extracted from the leak post

Airline operational data
Passenger records
Employee information
Internal business documents

What the group claims

garuda-indonesia.com zoominfo.com/c/garuda-indonesia/15630439 Garuda Indonesia is the national flag carrier of Indonesia, founded in 1949 and named after the mythical bird Garuda . The airline is a member of the SkyTeam alliance and is recognized for its "Garuda Indonesia Experience" service, highlighting Indonesian hospitality . It has received numerous accolades, including a 5-star rating from Skytrax, which it has held since 2014 . The airline operates flights to over 90 destinations worldwide from its main hubs at Soekarno-Hatta International Airport (Jakarta) and Ngurah Rai International Airport (Bali) Stock Symbol GIAA.JK

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 sitegaruda-indonesia.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 21, 2026Garuda Indonesia Airlines 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, Garuda Indonesia Airlines is reported in Indonesia, a country with 23 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Garuda Indonesia Airlines 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.