high severity June 15, 2026 · 3 min read Unverified claim — what this is

donjon Listed by Deadlock Ransomware Group

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

donjon was listed on Deadlock's leak site. Deadlock claims to have stolen internal data. This is the group's claim, not a confirmed finding.

donjon Listed by Deadlock Ransomware Group

On June 11, 2026, Singapore-based mechanical and electrical engineering firm Donjon Pte Ltd appeared on the leak site of the Deadlock Ransomware Group. The company, which provides services to commercial, industrial, and residential clients and holds registration with the Building and Construction Authority, is claimed to have had internal files exfiltrated during a ransomware incident. While the exact number of people whose information may have been exposed remains unknown, anyone whose personal or business records passed through Donjon’s systems could be affected.

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Reported Details from Reports

Public reporting indicates that Deadlock posted Donjon to its leak site on June 11, 2026. The data consists of internal files exfiltrated after the ransomware group gained access to the company’s network. Donjon Pte Ltd, founded in 2003, is a BCA-registered contractor in Singapore that works across multiple building sectors. No confirmed victim count has been released, and the precise types of records taken have not been publicly detailed beyond the broad description of internal files.

Why This Matters for You and Your Family

When a service provider like Donjon suffers a breach, the information you shared with them — invoices, contracts, addresses, phone numbers, or payment details — can end up in the hands of criminals. That data rarely stays isolated. It can be combined with other leaks to build a profile that puts your household at risk of identity theft, phishing, or physical threats. For families, this often means children’s names, school details, or family addresses become easier for attackers to discover and exploit.

The Doxxing and Identity-Chain Risk

Stolen internal files frequently contain email addresses, employee directories, client contact lists, or project documents that link online handles to real-world identities. Once attackers map these connections, one breach can cascade into account takeovers across email, banking, social media, and gaming platforms. Credential leaks of this nature are especially dangerous for gaming accounts belonging to you or your children, where usernames and passwords are often reused and can quickly lead to doxxing chains that expose home addresses and family relationships.

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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 sample580 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.

Report details & sourcing

Attributed to Deadlock · 105 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed June 15, 2026

Last reviewed August 8, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

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.

Threat-actor tracker

Deadlock — 105 incidents tracked

Every breach we've attributed to Deadlock, in one running log. See who else they've hit →

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