PT Perusahaan Jamu Air Mancur listed on coinbasecartel leak site

• Ransomware group: coinbasecartel
• Country: Indonesia
• Sector: Agriculture and Food Production
• Announcement date: August 22, 2026

A data breach claim against PT Perusahaan Jamu Air Mancur

The threat actor known as coinbasecartel has listed PT Perusahaan Jamu Air Mancur on their dedicated leak site. According to the announcement made on August 22, 2026, the group claims to have successfully compromised the organization's data, marking a potential significant security incident for the Indonesian manufacturer.

Ransomware groups often utilize leak sites as a tool for double extortion. In such scenarios, attackers not only encrypt an organization's internal systems to disrupt operations but also exfiltrate sensitive data. The threat of releasing this stolen information on a public forum is used to pressure the victim into paying a ransom. While the presence of a listing on a leak site is a serious indicator of a potential compromise, it remains a claim made by the threat actor.

Details of the alleged incident

The announcement was published by the coinbasecartel group on August 22, 2026. The group alleges that they have gained unauthorized access to the organization's data. This type of claim typically follows a period of undetected lateral movement within a network, where attackers seek out high-value information to leverage during negotiations.

Regarding the specifics of the breach, the group claims that the volume of data involved is 438.76 GB. However, no details or sample files regarding the specific content of the allegedly leaked data have been provided by the attackers. The listing does not contain specific information regarding the types of data involved, and the screenshots associated with the claim do not reveal the nature of the compromised files.

Affected data types

The listing names no specific data types.

About PT Perusahaan Jamu Air Mancur

PT Perusahaan Jamu Air Mancur is a well-established Indonesian manufacturer specializing in herbal medicine and traditional remedies, known as jamu. The company focuses on the production and distribution of various herbal supplements, health products, and traditional beverages.

Risk assessment and industry implications

Public information regarding the coinbasecartel group is currently limited. The alleged data breach poses several secondary risks that organizations must consider. For instance, if sensitive information is indeed leaked, it could lead to identity theft or targeted phishing attacks directed at the organization's employees and customers. Such social engineering attacks often exploit the personal details found in leaked databases to gain further access to corporate systems or to defraud individuals.

Furthermore, the claimed volume of data suggests that sensitive information regarding the organization's operational processes may have been exposed. Should the threat actor follow through with publishing or selling this data, the organization's commercial reputation could be significantly impacted. Additionally, the organization may face legal obligations under Indonesian data protection regulations following such an incident.

In the agriculture and food production sector, maintaining the integrity of operational processes and protecting proprietary formulations is vital. Organizations in this sector typically focus on several defensive measures to mitigate these risks, including:

• Implementing robust network segmentation to prevent lateral movement by attackers.
• Enforcing multi-factor authentication (MFA) across all remote access points and administrative accounts.
• Maintaining rigorous monitoring and logging to detect unauthorized data exfiltration attempts.
• Conducting regular security awareness training to help employees recognize phishing attempts.

As the situation develops, the impact of this alleged breach will depend heavily on whether the claimed data is actually released and what specific operational or personal information it contains.