International Door, Inc listed on nightspire leak site

• Ransomware group: nightspire
• Country: United States
• Sector: Manufacturing
• Announcement date: December 24, 2025

International Door, Inc listed on nightspire leak site

International Door, Inc has been listed on the leak site of the threat actor group known as nightspire. The group has published an announcement claiming to have compromised data belonging to the organization, marking a potential significant data breach for the manufacturing firm.

Details of the alleged attack

According to the post published by the nightspire group on December 24, 2025, the threat actors claim to have gained unauthorized access to the organization's network. The group alleges that this initial access was obtained on December 16, 2025. This timeline suggests that the attackers may have maintained presence within the network for several days prior to the public announcement on the leak site.

Ransomware leak sites are a common tool used by modern cybercriminal groups to exert pressure on victims. These sites often function as a public gallery where stolen data is showcased to coerce organizations into paying ransoms. This tactic is frequently associated with double extortion, where attackers not only encrypt an organization's systems but also steal sensitive information to threaten its public release.

Data involved in the incident

The nightspire group claims that the total volume of the exfiltrated data amounts to 259 GB. However, the group has not provided any screenshots or detailed information regarding the specific content of the alleged leaked data. The listing names no specific data types or file categories that have been compromised.

In many such incidents, the lack of immediate detail regarding the content of the stolen files can create significant uncertainty for the victimized organization. Without a clear understanding of whether the data consists of intellectual property, employee records, or financial documents, the organization must prepare for various potential outcomes ranging from operational disruption to regulatory scrutiny.

Organization profile

International Door, Inc. is an American manufacturing company specializing in industrial and commercial door systems. The firm focuses particularly on aircraft hangar doors and custom door solutions. Based in Michigan, the firm provides engineering and manufacturing services for large scale infrastructure projects.

Risk assessment and implications

This incident may pose risks to the organization's operational continuity and data privacy. Until the nature of the alleged leaked data is clarified, the possibility of the exposure of personal information or trade secrets should be considered. As the organization is based in the US, state-level data protection laws and potential notification requirements may be applicable.

Secondary risks may include the use of leaked data for identity theft or targeted phishing attacks. When sensitive corporate or personal information is leaked, attackers often use it to launch more sophisticated social engineering campaigns against employees or clients. For manufacturing firms, the loss of trade secrets or engineering specifications can also impact competitive advantages and long-term strategic planning.

While public information about the nightspire group remains limited, the incident highlights the ongoing threat to the manufacturing sector. Organizations in this sector often manage complex supply chains and sensitive engineering data, making them attractive targets for cybercriminals. To mitigate such risks, organizations typically focus on strengthening network segmentation, implementing robust identity and access management, and maintaining rigorous monitoring of data exfiltration patterns. Ensuring that all systems are patched and that employees are trained to recognize phishing attempts are also standard defensive measures used to reduce the likelihood of successful initial access.