PT. Mitra Antar Tangguh Listed by Tengu Ransomware Group

On February 10, 2026, Indonesian company PT. Mitra Utama Sinergi Tangguh appeared on the leak site of the tengu ransomware group. The attackers claim to have stolen internal files during a ransomware incident. While the exact number of people whose information was taken remains unknown, anyone whose personal or employment records were stored in the company’s systems could be affected.

What Public Reporting Shows

Public reporting indicates the company, formally registered in Indonesia as a limited liability entity (Perseroan Terbatas), had internal files exfiltrated. The tengu group posted evidence of the breach on its dark-web leak site on February 10, 2026. No confirmed total of records or specific data types such as names, addresses, or financial details has been publicly quantified, but ransomware incidents of this nature routinely involve employee personal information, contracts, and internal documents. Available reporting describes the victim as an Indonesian business; exact scope of the stolen data set has not been independently verified.

Why This Matters for You and Your Family

When a company that employs people or holds customer records is breached, the information can surface in places far beyond the original attack. Your name, address, phone number, or work details may be bundled with thousands of others and sold or posted online. For you and your family this can lead to unexpected spam, identity theft attempts, or targeted scams that feel personal. Children’s records linked to a parent’s employment are sometimes included, creating long-term risks that are harder to spot.

The Doxxing and Identity-Chain Risks

Stolen internal files often contain email addresses, usernames, or phone numbers that connect one account to another. Attackers and opportunistic criminals follow these links to build a full picture of your online life. A single leaked work email can expose personal accounts, social profiles, and even gaming logins. Once the chain starts, it becomes easier for someone to dox you — publishing your home address, family names, or other private details. Credential leaks like this one frequently cascade into account takeovers, especially for gaming accounts belonging to you or your children.

tengu Ransomware Group Track Record

Public reporting attributes the attack to the tengu ransomware group. The group emerged in recent years and has targeted organizations across multiple countries with a standard playbook: gain initial access, exfiltrate data before encryption, then demand payment while threatening to publish the stolen files. Notable prior victims have included companies in various sectors, though specific earlier cases are still being catalogued by threat trackers. Their typical approach combines ransomware deployment with data extortion, giving victims a deadline to pay or face public release of the files.

What to do

• Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity, with cleanup handled by the service.
• Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next exposure is caught in hours rather than months.
• Rotate any password used at PT. Mitra Utama Sinergi Tangguh or related services anywhere it has been reused, and switch on 2FA through an authenticator app instead of text messages.
• Cover the entire household with DoxxScan family protection that extends to dependents and children’s gaming accounts that can chain back to the same address or credentials.
• Let remediation specialists perform hands-on takedown requests across data brokers and exposed sites on your behalf.

The incident shows how quickly corporate breaches can reach ordinary families. Taking concrete steps now limits what criminals can build from leaked data. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists, with coverage that includes your household and children’s gaming accounts. Start your DoxxScan trial today to close the gaps this claimed breach may have opened.