Balkan Polymers Listed by The Gentlemen Ransomware Group

The Gentlemen ransomware-extortion group has listed Balkan Polymers on its leak site. According to the listing, the Serbian polymer recycling company appears among organisations the group claims to have compromised. Balkan Polymers has not publicly confirmed the claim as of this writing.

What a Leak-Site Listing Actually Establishes

Ransomware groups routinely post company names on leak sites as leverage to extract payment. These listings are marketing material produced by the attacker. They frequently contain recycled data from older incidents, exaggerated claims, or material taken from public sources. A listing alone does not constitute proof that a breach occurred, that data was successfully exfiltrated, or that the description of the material is accurate.

Real confirmation would require an independent investigation, a regulatory filing that verifies the incident, or a direct notification from the company admitting the event and detailing what was taken. None of those exist here. The September 14, 2026 filing on the leak site is the only public record, and it provides no incident date, no count of affected individuals, and no verified inventory of records.

The Pattern in Manufacturing and Industrial Firms

Ransomware operators have repeatedly targeted manufacturing, recycling, and industrial companies in Central and Eastern Europe. They publish unverified listings to create pressure, knowing that even the suggestion of exposure can damage supplier relationships and customer confidence. Many of these claims later prove overstated or entirely recycled. The pattern does not tell you whether this specific listing is genuine, but it does mean you should treat every new leak-site appearance in this sector with measured scepticism until independent evidence appears.

What Remains Permanent and What You Can Still Control

The primary controllable exposure is therefore account-level access tied to your password.

Because the record does not enumerate categories of information and does not state how many people were affected, the only reliable way to determine whether your specific records were involved is a direct notification from Balkan Polymers. The company is required to contact affected individuals by post to their last known address. If you have not received such a letter, it is likely your information was not included. However, if you have moved since the company last updated its records, the letter may not have reached you. In that case, contact Balkan Polymers directly to confirm your status.

Concrete Steps You Should Take Today

• Use a unique, strong password generated by a manager.
• Enable multi-factor authentication on the Balkan Polymers account and on every other important service. This blocks most credential-stuffing attacks even if the password is already known.
• Review recent account activity on balkanpolymers.com and any linked supplier or customer portals for unfamiliar orders, downloads, or changes.
• Monitor for phishing attempts claiming to come from Balkan Polymers or The Gentlemen group. Attackers sometimes follow leak-site postings with targeted emails demanding payment or offering “data removal.”

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