krybit ransomware group lists www.harputyapi.com on its leak site

• Ransomware group: krybit
• Country: Türkiye
• Announcement date: September 17, 2026

The krybit ransomware group has listed the Istanbul-based construction company Harput Yapı on its leak site. The threat actor has announced that it has published information belonging to the organization, claiming to have targeted the entity as part of its operations.

The details of the claim

The threat actor known as krybit has announced that it has published information belonging to www.harputyapi.com on its leak platform. According to the announcement, the group claims to have targeted the organization, with the listing appearing on September 17, 2026. The listing includes general information regarding the company's operations and its various projects, serving as a public notice of the alleged breach.

Ransomware groups often utilize leak sites as a method of double extortion. In such scenarios, attackers not only encrypt an organization's data to disrupt operations but also threaten to release sensitive information to the public to pressure the victim into paying a ransom. These platforms serve as a public gallery for the group's victims, often displaying names and sometimes screenshots to prove the validity of the breach.

Information involved in the listing

Regarding the specific content of the alleged breach, there is no information provided in the listing regarding the nature or content of the allegedly leaked data. The screenshot provided by the group contains only general promotional information about the company. Consequently, the listing names no specific data types that have been compromised.

Potential risks and implications

This incident suggests that the organization's digital assets and operational data may be at risk. If the leaked data includes customer information or contracts, it could lead to data breach notification obligations under local regulations such as KVKK. Furthermore, negative impacts on the company's commercial reputation may be observed, and the data could potentially be used to facilitate targeted phishing attacks against customers.

When organizations face such threats, it is common for the stolen data to be used in subsequent social engineering campaigns. For example, if contact details or project specifics are leaked, attackers may craft highly convincing phishing emails to target employees or clients. This secondary phase of an attack can cause significant long-term damage to trust and operational security.

About Harput Yapı

Harput Yapı is an Istanbul-based residential real estate developer and construction company. The company carries out various housing projects and construction development activities.

Security assessment and recommended actions

Public information about the krybit group is limited. Because the group's methods and identity are not well-documented in the public domain, organizations facing such threats must remain vigilant. It may be advisable for the organization to review its systems and initiate forensic processes to identify potential data breaches.

For companies operating in the construction and real estate sector, maintaining robust cybersecurity hygiene is essential. This includes implementing multi-factor authentication, maintaining regular offline backups, and conducting regular vulnerability assessments. If a breach is suspected, engaging forensic experts to determine the scope of the intrusion is a critical step in understanding what was taken and how to prevent future occurrences. Protecting digital assets is vital to maintaining commercial reputation and ensuring compliance with data protection laws.