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, had internal files exfiltrated during a ransomware incident. While the exact number of people whose information was exposed remains unknown, anyone whose personal or business records passed through Donjon’s systems could be affected.

Confirmed 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.

Deadlock Ransomware Group Track Record

Public reporting attributes the Deadlock Ransomware Group with operations that emerged in recent years. The group is known for targeting organizations across various sectors, exfiltrating sensitive data before encrypting systems, and then publishing samples on dedicated leak sites to pressure victims into payment. Their typical playbook involves initial access through common vulnerabilities or phishing, followed by data theft, encryption, and extortion demands backed by the threat of public release. Exact prior victims and timelines remain subjects of ongoing industry tracking.

What to do

• Run a DoxxScan to map every link between your emails, phone numbers, handles, and real identity so you can see exactly what this breach connects to.
• Rotate any password you used at Donjon or related services anywhere it has been reused, and switch on two-factor authentication through an authenticator app rather than SMS.
• Enable continuous DoxxScan monitoring across 15.4B+ breach records and 100+ platforms so the next leak exposing your family is flagged within hours instead of months.
• Cover the household with DoxxScan family protection that extends to dependents and children’s gaming accounts, which often chain back to the same addresses and credentials.
• Let remediation specialists handle the follow-up work, including takedown requests across data brokers and suspicious sites that surface after incidents like this.

The Donjon breach is a reminder that your information can be exposed through companies you never think of as high-risk targets. Taking concrete steps now limits how far attackers can travel along the identity chain before you stop them. DoxxScan by GalaxyWarden delivers continuous monitoring across more than 15.4 billion breach records and over 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists, with coverage that protects your entire household including children’s gaming accounts. Start protecting what matters most today.