Homestead Electrical Contracting targeted by Sinobi ransomware group

• Ransomware group: Sinobi
• Country: United States
• Sector: Professional Services
• Announcement date: December 20, 2025

The Sinobi ransomware group has officially listed the United States-based firm Homestead Electrical Contracting on its leak site. According to the announcement made on December 20, 2025, the threat actors claim to have compromised the organization's data and are demanding a ransom of $6,100,000 to prevent further exposure.

The details of the claim

The threat actor known as Sinobi has published a listing for Homestead Electrical Contracting, alleging that the company's data has been compromised. In the announcement, the group claims to provide evidence of encrypted data belonging to the organization. While the group has made these claims public, it is important to note that public information regarding the specific activities and identity of this group remains limited.

The incident reportedly took place around December 18, 2025, according to the timeline provided by the attackers. Ransomware attacks often follow a pattern where attackers gain access to a network, escalate privileges, and eventually exfiltrate sensitive information before deploying encryption. Once the data is stolen, the group typically uses a leak site to pressure the victim into paying a ransom to avoid the public release of the stolen information.

Data involved in the incident

Specific details regarding the exact nature and volume of the leaked data have not been provided by the attackers. However, the group has shared certain evidence to support their claims. The available screenshots provided by the threat actor include samples related to system files and device specifications.

• System files
• Device specifications

The listing does not specify the total size of the data or the exact number of files that have been compromised. In many modern cyberattacks, threat actors employ a tactic known as double extortion. In this scenario, the attackers do not just encrypt the victim's systems to disrupt operations; they also steal sensitive data and threaten to publish it on a public leak site if the ransom is not met. This increases the pressure on the organization, as the threat shifts from mere operational disruption to a massive loss of confidentiality and potential regulatory penalties.

About Homestead Electrical Contracting

Homestead Electrical Contracting is an electrical contracting firm that has been operating since 1981. The company provides a wide range of specialized services, including electrical design, high-voltage wiring, and the installation of fire alarm systems. To support its diverse client base, the firm offers 24/7 maintenance and support services to various commercial and industrial clients.

Risk assessment and industry implications

This claim poses a significant risk to the organization's operational continuity and the confidentiality of its client data. Because the company is based in the United States, a confirmed data breach could trigger various state-level data protection laws and mandatory notification requirements for the affected parties.

The organization's professional profile suggests it works with large-scale clients, such as Walgreens Corporation. This connection increases the potential risk of supply chain attacks, where a breach in a service provider is used as a stepping stone to reach larger, more lucrative targets. Furthermore, such breaches can lead to secondary targeted phishing campaigns, where attackers use stolen information to impersonate company officials or service providers to deceive clients or employees.

The high ransom demand of $6,100,000 suggests that the attackers may have specific expectations regarding the value of the corporate data they have allegedly acquired. For organizations in the professional services sector, maintaining robust security postures is essential. This includes implementing multi-factor authentication, maintaining regular offline backups, and conducting regular security awareness training to mitigate the risk of initial access through phishing or other common vectors.