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Ransomware Victim Manufacturing

Undefasa

Ransomware attack by Blacknevas · Disclosed October 13, 2025 · 🇪🇸 Spain

www.undefasa.com

Date Disclosed
Oct 13, 2025
2025
Threat Group
Blacknevas
45 total victims
Country
🇪🇸 Spain
Industry
Manufacturing

ThreatAI Analysis

Compiled from this incident record and the threat intelligence profile for Blacknevas. Figures and technique mappings are quoted from the source data, not inferred.

About the Blacknevas group

BlackNevas is a ransomware group first observed in November 2024, believed to be derived from the Trigona ransomware family, targeting telecommunications, manufacturing, medical, and legal industries primarily in Asia-Pacific, the UK, Italy, and Lithuania using double-extortion with a dual AES/RSA encryption scheme. Blacknevas has listed 39 victims since April 2023.

Incident Analysis

Undefasa was targeted by Blacknevas ransomware, one of the most active ransomware groups in our database with 45 confirmed victims globally. The attack was disclosed on October 13, 2025, when Undefasa appeared on the group's dark web leak site.

Undefasa is based in Spain , operating in the Manufacturing sector. Spain ranks #9 globally for ransomware attacks, with 425 victims in our database.

Sector context: Manufacturing companies are frequently targeted because production downtime directly translates to financial loss. Ransomware operators exploit this time-sensitivity to demand higher ransoms and faster payment.

Blacknevas typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats — paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Sep 6, 2026 20:00 UTC.

Frequently Asked Questions

Was Undefasa attacked by ransomware?

Yes. Undefasa was listed as a victim of the Blacknevas ransomware group on October 13, 2025. The organisation is based in Spain and operates in the Manufacturing sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Undefasa?

Undefasa was attacked by Blacknevas ransomware. Blacknevas is one of the most active ransomware groups, having claimed 45 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Undefasa ransomware attack occur?

The ransomware attack on Undefasa was disclosed on October 13, 2025. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the Undefasa ransomware attack?

The specific data stolen from Undefasa has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Manufacturing organisation, Undefasa likely held sensitive business data, client information, and operational records.

How can organisations protect against Blacknevas attacks?

To defend against Blacknevas and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.