Kabelovna Kabex Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Kabelovna Kabex was listed by thegentlemen ransomware group on March 16, 2026 after internal files were exfiltrated in a ransomware attack. The number of people affected is undisclosed; individuals are advised to monitor accounts and change passwords if they have any connection to the company.
What happened
On 16 March 2026 the ransomware group thegentlemen listed Kabelovna Kabex on its leak site. The listing states that internal files were exfiltrated during a ransomware attack. No figure for the volume of data, the number of people affected, or the date of the intrusion has been released. The company has not issued a public statement confirming or denying the claims.
The group behind it: thegentlemen
Thegentlemen is a ransomware operation that maintains a public leak site where it lists organisations it claims to have targeted. The group typically announces that it has copied files before encryption and threatens to publish them unless a ransom demand is met. Its listings appear without independent verification of the underlying intrusion or the authenticity of the material offered for sale or release.
Who is Kabelovna Kabex?
Kabelovna Kabex is a Czech manufacturer founded in 1994 that produces specialised cables, including those used in nuclear power plants, hermetic cable penetrations, and power cables rated up to 30 kV. It supplies Czech and Slovak nuclear facilities and has provided equipment for projects such as the Kudankulam nuclear power plant in India. Organisations in this sector routinely store technical specifications, supplier contracts, employee records and communications with regulated customers.
The information in question
The only data category named in the listing is “internal files exfiltrated in ransomware attack.” No inventory of file types, no confirmation that personal data are present, and no statement on whether customer or employee records are included have been made public. The exact contents therefore remain unconfirmed.
Why it matters
Internal files from a nuclear-sector supplier can contain details about equipment specifications, maintenance schedules and business relationships. If any of those files include personal identifiers, contact information or employment records, the individuals concerned could face increased risk of targeted phishing or misuse of their data. For the company, the incident adds to the operational and regulatory burden that follows any confirmed or claimed exfiltration of operational material.
Were you affected?
Check any recent correspondence from Kabelovna Kabex or its partners for direct notification. Individuals can also enter their email address into a free public breach-exposure scanner to see whether it appears in data sets already circulating from known incidents. Where accounts show signs of exposure, changing passwords and enabling multi-factor authentication on associated services are standard first steps.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Publicly posted by thegentlemen — 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.