Summary
On March 16, 2026, the ransomware group The Gentlemen claimed responsibility for a cyberattack against
Kabelovna Kabex (kabex.cz), a leading Czech manufacturer of specialized cables for nuclear power plants. The attackers have threatened to leak sensitive data unless their demands are met.
Incident Report
| Field | Details |
|---|---|
| Target | Kabelovna Kabex |
| Domain | kabex.cz |
| Country | Czech Republic |
| Attacking Group | The Gentlemen |
| Date Reported | March 16, 2026 |
| Threat Actor Statement | “kabex.cz rocketreach.co/kabelovna-kabex-as-profile_b5947399f662772e Kabelovna Kabex is a Czech special cable manufacturer founded in 1994 . The company specializes in cables for nuclear power plants (including LOCA-cables), hermetic cable penetrations, and power cables up to 30 kV . Kabex is a key supplier to Czech and Slovak nuclear plants and has supplied projects like the Kudankulam NPP in India.” |
Recommended Security Actions
Ransomware attacks are increasingly targeting both enterprise and mid-sized organizations across all sectors. The following steps are critical to reduce impact and prevent future incidents:
- Monitor continuously: Use DeXpose’s dark web and infostealer monitoring platform to detect breached credentials, leaked databases, and threat actor chatter in near real-time—before damage spreads internally.
- Conduct a compromise assessment: Immediately initiate a full incident review to determine how attackers infiltrated your network, what data may have been exfiltrated, and whether any persistence mechanisms remain active.
- Validate your backups: Ensure that your backups are current, encrypted, and stored offline. Utilize immutable backup solutions to defend against ransomware encryption and deletion attempts.
- Apply threat intelligence: Integrate external threat feeds, including DeXpose-provided indicators of compromise (IOCs), into your SIEM or XDR platforms for real-time alerting and correlation.
- Harden employee defenses: Run phishing simulations and enforce multi-factor authentication (MFA) across all access points. Attackers often exploit weak or reused credentials sourced from the dark web.
- Engage professional response teams: Involve cybersecurity incident response experts, threat analysts, and legal counsel before initiating any dialogue with ransomware groups or ransom brokers.
How DeXpose Helps You Stay Ahead
At DeXpose, we specialize in early detection and proactive defense. Our hybrid threat intelligence solution combines automated deep/dark web crawling, Telegram and forum monitoring, and real analyst verification to deliver:
- Continuous scanning of ransomware group leak sites, stolen credential markets, and malware log dumps
- Timely alerts for breaches linked to your domains, email addresses, and key personnel
- Intelligence correlation that connects leaked credentials to infostealer malware infections, often weeks before a public ransom demand
- Real-time visibility into supply chain and third-party exposures through passive surveillance of dark web channels
Don’t wait for public disclosure or ransom notices—gain visibility into your cyber exposure now.
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Disclaimer
DeXpose does not engage in the exfiltration, hosting, redistribution, or purchase of stolen data. All breach information reported here is collected from publicly accessible dark web sources and threat intelligence platforms.
Our mission is to equip organizations with early-warning indicators, contextual threat insights, and actionable intelligence that help them secure their digital assets against evolving cyber threats.
