Disclosure context

About linkc

Given the extremely limited public documentation available, linkc appears to be a newly emerged or minor ransomware operation first observed in February 2025, with only one documented victim to date. The group demonstrates a focus on the technology sector within the United States, though their country of origin, operational structure, and affiliations remain unknown due to insufficient intelligence reporting from major cybersecurity organizations and law enforcement agencies. Without documented analysis from CISA, FBI, Mandiant, or other reputable security researchers, the group's attack methodology, initial access vectors, encryption techniques, and extortion tactics cannot be definitively characterized. No notable campaigns, high-profile victims, or significant ransoms have been publicly reported for this group. The current operational status of linkc remains unclear due to the lack of comprehensive threat intelligence reporting on their activities. The group has been linked to 4 public disclosures across our corpus. First observed on a leak site on February 19, 2025; most recent post April 8, 2026. The operation is currently active.

Timeline of this disclosure

February 19, 2025h2o.ai listed by linkcon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 2,524 disclosures indexed across all operators we track. Geographically, h2o.ai is reported in United States, a country with 7,392 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.

Ransomware victim disclosure

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h2o.ai

Claimed by linkc · listed 1 year ago

15m

Age

since listed · data leaked

Status timeline

Listed
Feb 19, 2025
Data leaked

At a glance

Group: linkc
Status: Data leaked
Country: United States
Sector: Technology
Listed on leak site: Feb 19, 2025

What the group claims

As a result of our operation, we have discovered the following concerning data: 1. Unanonymized customer datasets intended for AI training. 2. Full source code of programs from the Git repository, including code for driverless systems, GPT models, and others. 3. A substantial amount of internal information, including contracts, customer personal data, project costs, and project documentation. 4. Backup copies of employee email accounts containing customer correspondence.

Sources

Source

Indexed 1 year ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.