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Ransomware Victim Technology

Taldor

Ransomware attack by Nasirsecurity · Disclosed October 12, 2025 · 🇮🇱 Israel

Date Disclosed
Oct 12, 2025
2025
Threat Group
Nasirsecurity
6 total victims
Country
🇮🇱 Israel
Industry
Technology

ThreatAI Analysis

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

About the Nasirsecurity group

Nasir Security is a pro-Iranian threat actor that emerged around October 2025, primarily targeting energy sector organizations in the Middle East (UAE, Oman, Saudi Arabia, Iraq) and Israeli IT supply chain firms, using spear-phishing, BEC, and exploitation of public-facing applications. Nasirsecurity has listed 1 victims since October 2025.

Incident Analysis

Taldor was targeted by Nasirsecurity ransomware, one of the most active ransomware groups in our database with 6 confirmed victims globally. The attack was disclosed on October 12, 2025, when Taldor appeared on the group's dark web leak site.

Taldor is based in Israel , operating in the Technology sector. Israel ranks #20 globally for ransomware attacks, with 141 victims in our database.

Sector context: Technology companies hold intellectual property, customer data, and source code — all highly valuable assets. A successful ransomware attack can also put downstream customers at risk through supply chain exposure.

Nasirsecurity 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 22:00 UTC.

Frequently Asked Questions

Was Taldor attacked by ransomware?

Yes. Taldor was listed as a victim of the Nasirsecurity ransomware group on October 12, 2025. The organisation is based in Israel and operates in the Technology sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked Taldor?

Taldor was attacked by Nasirsecurity ransomware. Nasirsecurity is one of the most active ransomware groups, having claimed 6 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the Taldor ransomware attack occur?

The ransomware attack on Taldor was disclosed on October 12, 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 Taldor ransomware attack?

The specific data stolen from Taldor 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 Technology organisation, Taldor likely held source code, intellectual property, and customer data.

How can organisations protect against Nasirsecurity attacks?

To defend against Nasirsecurity 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.