Skip to content
Back to Blog
high severity February 27, 2026 · 4 min read Unverified claim — what this is

Thg Listed by thegentlemen Ransomware Group

If you are a customer of Thg, here’s what is being claimed, and what it would mean for you.

gee.be Focus on your business, stay a step ahead of events, keep on the right track. thg is here to guide and advise you. The word digitalisation can be scary. Yet it offers some interesting perspectives, particularly in the fields of tax advice and accountancy. Simon Boskin, Partner at thg Luxembourg, talks about the numerous opportunities that the digital revolution offers our clients during an interview that appeared in our last newsletter. A must-read, as well as other current topics

— from The Gentlemen’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.
Thg Listed by thegentlemen Ransomware Group

On February 27, 2026, THG appeared on the leak site operated by the ransomware group known as thegentlemen. The company, a Luxembourg-based provider of tax advice, accountancy, and digitalisation services, is claimed to have had internal files exfiltrated during a ransomware attack. While the exact number of people whose information was taken remains unknown, anyone whose personal or financial records passed through THG’s systems could be affected.

Already exposed?
You can’t unleak data. You can take away what it’s worth.
A leaked record is where it starts, not where it ends. What turns it into your front door is the look-up sites publishing your address beside your name — and those are what an AI reads when somebody asks about you. The free scan shows you both. We write to 582 companies.
See what is exposed about you — free scan →
Not ready yet? Run a free breach check on this email
We’ll check it against 13.1B+ leaked records right now — no account needed. Continuous monitoring & alerts are part of Protection.

Reported Details of the Breach

Public reporting indicates that thegentlemen posted THG to their leak site on February 27, 2026, claiming to have stolen internal files. The company’s own description highlights its work in tax advice, accountancy, and helping clients navigate digital transformation. No confirmed total of records or specific data fields has been published, but ransomware incidents of this type routinely involve employee details, client information, financial documents, and correspondence. The primary source is thegentlemen’s own leak site, indexed by ransomware.live at the onion address provided at the end of this article.

Why This Matters for You and Your Family

When a firm like THG suffers a breach, the information exposed often includes names, addresses, tax identifiers, banking details, and email correspondence that can be used to target you or members of your household. Internal files from an accountancy and tax advisory company frequently contain sensitive personal data that criminals can exploit for identity theft, fraudulent loan applications, or phishing campaigns that look legitimate because they reference real past interactions. For families, this can mean children’s records or shared household finances becoming part of the dataset available to attackers. The breach adds another entry to the growing list of leaks that quietly accumulate over time, increasing the chance that your information will surface in unexpected places months or years later.

The Doxxing and Identity-Chain Risks

Stolen internal files rarely stay isolated. Criminals combine them with data from previous breaches to build detailed profiles that link your email address, phone number, workplace history, and family connections. This identity-chain process turns a single leak into a roadmap for doxxing, account takeovers, and harassment. Credential leaks of this nature frequently cascade into gaming accounts, where the same reused password or recovery email grants attackers access to your own or your children’s profiles, leading to further exposure of chat logs, linked payment methods, and real-world identities. Once the chain begins, stopping it requires visibility across dozens of platforms and rapid remediation before the information spreads further.

Thegentlemen’s Known Track Record

Public reporting attributes thegentlemen as a ransomware group that emerged in recent years and has targeted organizations across multiple sectors. Their typical playbook involves gaining initial access, exfiltrating data before encryption, and then publishing samples on their leak site to pressure victims into payment. Notable prior victims have included companies in professional services and other industries, though specific details remain limited in open sources. The group’s extortion style relies on the public shaming of non-paying targets through gradual data releases, a pattern consistent with many contemporary ransomware operations.

What to do

  • Run a DoxxScan to map every link between your emails, phone numbers, handles, and real-world identity so you can see exactly what chains back to the THG breach.
  • Rotate any password you used at THG or related services and enable 2FA through an authenticator app rather than SMS.
  • Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next time your information appears it is caught and addressed within hours instead of months.
  • Cover the household with DoxxScan family protection that includes dependents and children’s gaming accounts, which often become targets when credential leaks create doxxing chains.
  • Let remediation specialists handle the takedown work across data brokers and exposed records while you focus on securing your own accounts.

The THG incident is a reminder that even professional service firms handling routine financial and tax matters can become gateways to personal exposure. Taking deliberate steps now limits how far attackers can travel along the identity chain created by this and future leaks. DoxxScan by GalaxyWarden delivers continuous monitoring across more than 13.1 billion+ breach records and over 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists, with household coverage that explicitly includes children’s gaming accounts vulnerable to credential-based takeovers.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo
value redacted in this samplephone, household, property recordsBeenVerified
value redacted in this sample582 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach
unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

Check your exposure
Thg is one listing. Your email is probably in others.
We can’t confirm any single incident against the sources we search, so we won’t pretend to. What we can show you is your own exposure — your email against 13.1B+ leaked records and the sites that publish your address. About 15 seconds. No account, no card.

By running your scan you agree to the Terms and Conditions and the Privacy Policy, and to GalaxyWarden emailing you the results of this scan.

Report details & sourcing

Severity High the filing does not enumerate what was exposed
Disclosed February 27, 2026
Last reviewed August 8, 2026
Affected Unconfirmed
Unverified claim — what this report is
This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.
Editorial & sourcing policy
GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.
Share this Post on X Reddit Email