Expresokna Sp. Z O.O. Listed by Deadlock Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On July 10, 2026, the ransomware group Deadlock listed Expresokna Sp. Z O.O. on its leak site and stated that internal files had been taken from the company. The number of people affected remains unknown, and no further details about the volume of data or the method of access have been made public. The listing indicates that a ransomware operation targeted the Polish firm and resulted in the exfiltration of internal files. No confirmation of the claim has been issued by Expresokna Sp. Z O.O., and the precise timing of the intrusion, the scale of the data taken, and any ransom demands are not disclosed in available records.

What happened

Deadlock added Expresokna Sp. Z O.O. to its leak site on July 10, 2026, asserting that files had been removed during a ransomware attack. The company has not released a public statement confirming or denying the incident. No figures for the quantity of data or the number of individuals potentially involved have been reported.

Inside Deadlock

Deadlock is a ransomware group that publishes the names of organisations on a dedicated leak site after claiming to have encrypted systems and removed data. The group’s listings function as a pressure tactic, with the threat of further publication if demands are not met. Public records show the group has targeted companies across multiple sectors in prior incidents, though the specific claims made against Expresokna Sp. Z O.O. remain unverified beyond the listing itself.

About Expresokna Sp. Z O.O.

Expresokna Sp. Z O.O. is a manufacturer and distributor of PVC and aluminium window and door systems, located in Siemianowice Śląskie, Poland. The company operates in the construction-products sector and maintains internal records related to production, supply chains, and customer orders. A breach at such a firm can expose operational information that supports manufacturing schedules and client relationships.

What was likely exposed

The only detail provided is that internal files were allegedly exfiltrated. The exact categories of data contained in those files have not been disclosed. Organisations of this type commonly hold records on suppliers, production processes, pricing, and customer specifications, yet it is not confirmed whether any of these categories were among the material taken.

The real-world impact

Exposure of internal operational files can create competitive or logistical disadvantages for the company and may indirectly affect customers whose order or specification details appear in those files. Individuals have no immediate way to determine whether their information is included until the company or regulators release further information. The absence of confirmed data types leaves the scope of personal risk unquantified at present.

Were you affected?

Monitor statements from Expresokna Sp. Z O.O. and any official notifications issued by Polish data-protection authorities. Review bank and email accounts for unusual activity and consider placing fraud alerts with credit agencies if you have conducted business with the company. A free exposure scan of your email address against known breach data sets can provide an additional check on whether your information has appeared in public listings.

AICompiled with AI assistance from public sources and published under our editorial standards.