Disclosure context

About blacknevas

Blacknevas is an emerging ransomware group that was first observed in August 2025, appearing to be primarily financially motivated based on their targeting patterns and operational characteristics. The group's origin and potential affiliations remain unclear due to limited public documentation from established threat intelligence sources, though their diverse geographic targeting suggests either a distributed operation or broad opportunistic approach. Based on available victim data, Blacknevas has compromised at least 23 organizations across multiple countries, with the United States, Spain, India, Japan, and Thailand being the most frequently targeted nations, while their sector focus spans technology, manufacturing, energy, and consumer services industries, suggesting they employ opportunistic rather than sector-specific targeting methodologies. The group's attack vectors, specific tools, and whether they operate as a Ransomware-as-a-Service model or maintain independent operations have not been publicly documented by major cybersecurity firms or government agencies. Due to the group's recent emergence in August 2025, there is insufficient public reporting from established sources like CISA, FBI, or major threat intelligence providers to detail notable campaigns or significant attacks beyond the confirmed victim count. Given the recency of their first observed activity, Blacknevas appears to remain active as of late 2025, though comprehensive threat intelligence profiles from authoritative sources have yet to be published. The group has been linked to 31 public disclosures across our corpus. First observed on a leak site on August 6, 2025; most recent post April 30, 2026. The operation is currently active.

Also tracked as: black nevas.

Timeline of this disclosure

August 6, 2025CK Power Public Company Limited listed by blacknevason the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Energy sector, which has 374 disclosures indexed across all operators we track. Geographically, CK Power Public Company Limited is reported in TH, a country with 45 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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CK Power Public Company Limited

Claimed by blacknevas · listed 10 months ago

Age

since listed · data leaked

Status timeline

Listed
Aug 6, 2025
Data leaked

At a glance

Group: blacknevas
Status: Data leaked
Country: TH
Sector: Energy
Listed on leak site: Aug 6, 2025

About the victim

AI dossier — public-source company profile

CK Power Public Company Limited is a publicly listed Thai energy company that generates and sells electricity and steam in Thailand and the Lao People's Democratic Republic through multiple subsidiaries.

Industry: Electric Power Generation & Distribution

Attack summary

Severity: low — No proof files, data samples, or operational disruption described; only listing/announcement with minimal operational details provided.

The blacknevas group claims to have conducted an attack on CK Power but provides no details on the scope or nature of data exfiltration or encryption.

low

What the group claims

CK Power Public Company Limited, through its subsidiaries, generates and sells electricity and steam in Thailand and Lao People's Democratic Republic.

Sources

Source

Indexed 10 months 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.