On April 5, 2026, Polish mattress manufacturer M&K Foam Koło appeared on the leak site of the nova Ransomware Group, with the attackers claiming to have exfiltrated internal company files after a ransomware incident.
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What Public Reporting Shows
Public reporting indicates that the Polish firm, whose website is mkfoam.pl, specializes in sleep products including mattresses and beds. The nova Ransomware Group posted details of the breach on its dark-web leak portal, accessible via the .onion address hosted on the ransomware.live tracker. Available reporting describes the exposed material as internal files obtained during a ransomware attack. The number of people whose personal information may have been inside those files remains unknown. No specific deadline for payment or further data publication has been publicly detailed in the initial listing.
Why This Matters for You and Your Family
When a company that makes everyday household goods like beds and mattresses suffers a breach, the information stolen can easily include customer records, supplier contacts, employee details, or even payment information. If your name, address, email, or phone number was ever shared with M&K Foam Koło, that data may now sit in the hands of criminals. For ordinary families this means a heightened risk of identity theft, phishing emails that look legitimate, or unwanted solicitations that feel personally targeted. Children’s information is sometimes included in such corporate files when family purchases or warranty registrations are involved, extending the exposure beyond adults.
The Doxxing and Identity-Chain Risks
Stolen internal files frequently contain more than one piece of information about a person. An email address paired with a phone number, shipping address, or order history can be combined with data from other breaches to build a complete profile. These identity chains allow attackers to locate social-media accounts, gaming usernames, and even family members. Once criminals map those connections, doxxing escalates quickly from leaked customer data to harassment, swatting, or targeted scams. Credential leaks of this nature often cascade into account takeovers on unrelated services where the same password or email was reused.