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Ransomware Victim

TMC

Ransomware attack by Killsec ยท Disclosed February 11, 2025 ยท ๐Ÿ‡ฒ๐Ÿ‡ฝ Mexico

tmc.com.mx

Date Disclosed
Feb 11, 2025
2025
Threat Group
Killsec
279 total victims
Country
๐Ÿ‡ฒ๐Ÿ‡ฝ Mexico
Industry
โ€”

Incident Analysis

TMC was targeted by Killsec ransomware, one of the most active ransomware groups in our database with 279 confirmed victims globally. The attack was disclosed on February 11, 2025, when TMC appeared on the group's dark web leak site.

TMC is based in Mexico . Mexico ranks #12 globally for ransomware attacks, with 182 victims in our database.

Killsec 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 โ€” 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: May 18, 2026 12:01 UTC.

Frequently Asked Questions

Was TMC attacked by ransomware?

Yes. TMC was listed as a victim of the Killsec ransomware group on February 11, 2025. The organisation is based in Mexico. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked TMC?

TMC was attacked by Killsec ransomware. Killsec is one of the most active ransomware groups, having claimed 279 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the TMC ransomware attack occur?

The ransomware attack on TMC was disclosed on February 11, 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 TMC ransomware attack?

The specific data stolen from TMC 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. Sensitive business data was likely targeted.

How can organisations protect against Killsec attacks?

To defend against Killsec 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.