SECiL Listed by Deadlock Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
SECIL was listed by the Deadlock ransomware group on June 15, 2026, after internal files were exfiltrated. Individuals should check whether their information was involved and take appropriate protective steps.
People connected to the Turkish manufacturer SECiL may have personal or professional information caught up in a data incident first reported on June 15, 2026. Because the number of individuals affected is not known, those who have worked with or for the company have limited ways to assess their own exposure at present.
The listing by the Deadlock ransomware group indicates that internal files were taken during a ransomware attack. Without further confirmation on the contents or reach of those files, the practical consequences for individuals remain difficult to quantify precisely.
What happened
On June 15, 2026, the Deadlock ransomware group listed SECiL on its leak site. The available information states that internal files were exfiltrated during a ransomware attack. No figures have been released on the volume of data, the number of people affected, or the timeline of the intrusion itself.
The group behind it: Deadlock
The Deadlock group claims involvement by listing SECiL on its leak site. Public reporting on the actor shows it operates as a ransomware group that commonly exfiltrates data from targeted organizations and uses the threat of publication to apply pressure. No independent confirmation of the claims made in this specific listing has been provided in the reported facts.
SECiL and its sector
SECiL, formally Seçil Kauçuk, was founded in 1983 and manufactures rubber gaskets, sealing profiles, and industrial molded parts. Its products serve the construction, automotive, and infrastructure sectors from a 70,000-square-meter facility in Tarsus, Turkey. The company exports to more than 50 countries and maintains an official R&D center.
Manufacturing firms of this type routinely store records on employees, suppliers, customers, and product testing. A compromise of internal files therefore carries the potential to touch data belonging to individuals and organizations across multiple jurisdictions.
What was likely exposed
The reported facts state only that internal files were exfiltrated. The precise categories of data contained in those files have not been disclosed. While organizations in this sector commonly maintain employee records, commercial contracts, and technical documentation, the actual contents remain unconfirmed.
The real-world impact
Individuals whose information appears in the exfiltrated files could face risks of account misuse or unwanted contact if the material is later published or shared. The organization itself may encounter operational disruption, questions from business partners, and the need to manage any follow-on regulatory or contractual obligations.
What to do if you're exposed
Anyone who believes their information may be involved should begin by reviewing account activity on systems linked to SECiL and updating passwords where access has occurred. Additional steps include enabling available security features and watching for signs of identity-related activity.
- Run a free exposure scan of your email address against known breach data
- Monitor financial and email accounts for unusual login attempts
- Consider placing fraud alerts with credit agencies if personal identifiers were likely held
- Retain records of any correspondence with the company about the incident
AICompiled with AI assistance from public sources and published under our editorial standards.
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Publicly posted by deadlock — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.