Altaş data allegedly listed on Black Shrantac leak site

• Ransomware group: Black Shrantac
• Country: Türkiye
• Sector: Manufacturing
• Announcement date: September 20, 2025

Black Shrantac claims to have stolen data from Altaş

The threat actor known as Black Shrantac has listed data allegedly belonging to Altaş on its leak portal. According to the announcement made on September 20, 2025, the group claims to have obtained access to various sensitive information. This type of activity is characteristic of modern ransomware operations, where threat actors often employ double extortion tactics. In such scenarios, attackers do not merely encrypt a victim's systems to demand a ransom for decryption; they also exfiltrate sensitive data and threaten to publish it on public leak sites to increase pressure on the target organization.

The announcement indicates that a ransom process could be initiated for the deletion of the data. While the specific ransom demand has not been disclosed, the threat actor's presence on a leak site suggests an intent to use the stolen information as leverage. The group's public profile remains limited, providing little information regarding their specific origins or long-term objectives beyond the immediate extortion attempt.

The scope of the alleged data breach

The screenshots provided by the threat actor suggest a significant breadth of compromised information. The leaked content reportedly includes a variety of sensitive documents that touch upon many different aspects of the company's operations. Based on the information released by the group, the following types of data are allegedly involved:

• Financial records
• Payrolls
• Contracts
• Employee personal data
• Production procedures
• R&D data
• Network configuration information

The inclusion of network configuration information is particularly concerning from a cybersecurity perspective. When technical details regarding an organization's internal network architecture are exposed, it can provide a roadmap for secondary attacks. Such information can be used by other malicious actors to identify vulnerabilities or entry points within the infrastructure.

Organizational profile of Altaş

Altaş is a Turkey-based industrial company operating primarily in hazelnut processing, agricultural products, and food production. The company specializes in hazelnut exports and the manufacturing of various food products. As a key player in the manufacturing sector, the company manages complex production processes and significant supply chain relationships.

Potential implications and risks

This breach may increase the risk of identity theft or targeted phishing attacks against Altaş employees and business partners. The exposure of trade secrets and R&D data could negatively impact the company's competitive advantage. Furthermore, the leakage of network configuration information could facilitate secondary attacks against the institution's systems.

From a regulatory standpoint, under the KVKK regulations in Turkey, the organization may be subject to data breach notification requirements and potential administrative sanctions. Such regulations are designed to ensure that personal data is handled with high levels of security and that organizations are held accountable when such protections fail.

For organizations operating in the manufacturing and food production sectors, such incidents highlight the importance of robust defensive measures. Common defensive steps include implementing strict access controls, maintaining regular offline backups, and conducting continuous monitoring of network traffic to detect unauthorized exfiltration. Additionally, securing research and development data and protecting employee personal information through encryption and multi-factor authentication are critical components of a modern cybersecurity posture. As threat actors continue to target industrial entities, the protection of intellectual property and operational continuity remains a primary concern for the sector.