LinkC
Since Feb 19, 2025, LinkC has listed 4 organizations on its leak site.
Listings per month
- Total listings
- 4
- First listing
- Feb 19, 2025
- Latest listing
- Apr 8, 2026
- MITRE ATT&CK techniques
- 0
Linkc is a ransomware group first observed in February 2025, operating a Tor-based data leak site and targeting US-based AI, cloud, aerospace, and manufacturing companies — including H2O.ai — demanding ransoms as high as $15 million using double-extortion tactics.
It posted 3 listings in the last 12 months; the busiest month was April 2026 (3 listings).
Most targeted country: United States, with 4 listings (100% of the total).
Most targeted sector: Technology, with 3 listings (75% of the total).
Targeted countries
Targeted sectors
Showing 4 of 4 results
Published reports on this actor:
- https://www.redhotcyber.com/en/post/linkc-ransomware-the-new-cybercriminal-group-targeting-artificial-intelligence-data/#google_vignette
- https://www.cyfirma.com/research/tracking-ransomware-february-2025/
- https://www.cyjax.com/resources/blog/new-extortion-ransomware-group-linkc-emerges-what-you-need-to-know/
Source: MISP Galaxy, Malpedia.
What does a ransomware group do?
Ransomware groups break into corporate networks, move data out and encrypt systems. If the ransom is not paid, they list the organization on a leak site and threaten to publish the data.
What should you do if your organization is listed on a leak site?
- Record the listing and any published sample files; do not visit the leak site from the corporate network.
- Isolate affected systems and preserve logs without deleting them.
- Determine which data left the organization; if personal data is involved, review notification obligations with your legal team.
- Make any decision about the ransom demand together with legal, management and incident response.
- Do not bring systems back online before the attacker’s entry point is closed.
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