CK Power Public Company Limited listed on blacknevas leak site

• Ransomware group: blacknevas
• Country: Thailand
• Sector: Energy & Utilities
• Announcement date: August 6, 2025

Blacknevas claims a data breach against CK Power Public Company Limited

The threat actor known as blacknevas has listed CK Power Public Company Limited on its dedicated leak site. This announcement, made on August 6, 2025, involves an alleged data breach against the Thailand-based energy company. While the group has officially claimed the attack, the specific details regarding the incident remain limited due to the lack of public information concerning this particular threat actor.

Ransomware groups often utilize leak sites as a tool for double extortion. In such scenarios, attackers not only encrypt an organization's systems to disrupt operations but also exfiltrate sensitive data. The threat of releasing this stolen information on a public platform is used to pressure the victim into paying a ransom. By listing a target, the group aims to damage the victim's reputation and create public pressure to fulfill their demands.

Details of the alleged event

The blacknevas group has posted an announcement alleging a successful breach of CK Power Public Company Limited. According to the information provided on the leak site, the group claims to have gained access to the organization's environment. However, the group has not provided specific details regarding the nature of the data they allege to have exfiltrated. Furthermore, there is no documentation or description provided regarding the type or volume of the data involved in this incident.

The content shared by the group on the leak site is extremely limited. The imagery provided consists only of corporate logos and general imagery rather than evidence of sensitive files. There is no information available regarding the ransom demand or the specific timeframe of the initial intrusion, although the group has claimed an attack date of November 20, 2024.

Organization profile

CK Power Public Company Limited is a significant player in the energy sector, operating primarily in Thailand and Laos. The company is involved in the generation and sale of electricity and steam. A core focus of their business model is the development and operation of various energy projects, with a particular emphasis on renewable energy sources.

Potential risks and organizational implications

This incident may pose potential risks to the operational continuity of CK Power Public Company Limited. Because the content of the exfiltrated data has not yet been clarified, the possibility of the exposure of corporate information or employee data should not be overlooked. When sensitive data is potentially exposed, organizations often face complex challenges, including the need to comply with regional data protection regulations. In this case, the company's legal obligations under Thailand's data protection regulations may be triggered.

Beyond the immediate data concerns, such announcements can create a foundation for secondary attacks. These may include targeted phishing attempts where attackers use gathered corporate information to craft highly convincing deceptive communications. Such tactics are common in the aftermath of a breach, as attackers attempt to exploit the confusion or use the leaked information to gain further access to different parts of the organization or its partners.

For organizations operating in critical sectors like energy and utilities, maintaining robust security measures is essential to defend against such threats. Since there is insufficient data regarding the motivation and methods used by the blacknevas group, it is advisable for the affected company to review its security measures. General defensive strategies for organizations include implementing multi-factor authentication, maintaining regular offline backups, and conducting continuous monitoring of network traffic to detect unauthorized exfiltration attempts.

• No data types were named in the listing.