Spectrum Painting listed on sinobi ransomware leak site

• Ransomware group: sinobi
• Country: United States
• Sector: Professional Services
• Announcement date: October 2, 2025

The New York-based professional services firm Spectrum Painting has been listed on the leak site of the sinobi ransomware group. The threat actor has published an announcement claiming to have compromised sensitive information belonging to the company, marking a significant potential security incident for the organization.

The alleged attack and ransom demand

The threat actor known as sinobi has published a leak announcement claiming to have compromised data belonging to Spectrum Painting. According to the listing, the attack is claimed to have occurred on October 1, 2025. The threat actor alleges that they have obtained 420 GB of data related to the company's commercial operations.

In line with common double extortion tactics used by modern ransomware groups, the threat actor is demanding a ransom in exchange for not publishing the alleged data. Specifically, the group is demanding a ransom of 5,000,000 dollars. This type of pressure is a hallmark of ransomware-as-a-service operations, where attackers aim to maximize financial gain by threatening the release of confidential corporate information to the public or the dark web.

Data types involved in the claim

Based on the information provided in the leak site announcement, the data claimed to be leaked includes several sensitive categories of information. The screenshots associated with the claim suggest that the stolen material is of significant value to the attackers. The specific types of data identified in the listing include:

• Financial information
• Contracts
• Customer data

The exposure of such data types can have far-reaching implications for an organization's integrity and its relationship with its clients and business partners.

About Spectrum Painting

Spectrum Painting is a painting and decoration company specializing in luxury high-rise buildings and commercial structures in the New York Tri-State area. Operating since 1996, the company provides services such as painting, wallcovering installation, plastering, and epoxy finishes.

Potential impact and organizational risks

This incident may create negative impacts on Spectrum Painting's operational continuity and customer trust. The alleged leak of financial and contractual data could lead to the exposure of trade secrets and place the company at a competitive disadvantage. As a US-based entity, the potential data breach may result in legal consequences under state-level data protection laws and regulations. Furthermore, the exposure of customer data may increase the risk of identity theft or targeted phishing attacks for the affected individuals.

Regarding the threat actor, public information regarding the sinobi group is limited; therefore, the group's methods and motivations remain uncertain. In general, when organizations face such threats, they often focus on defensive measures such as implementing robust backup solutions, enforcing multi-factor authentication, and conducting regular security awareness training to mitigate the risk of initial access.

General context on ransomware threats

Ransomware attacks typically involve an attacker gaining unauthorized access to a network and deploying malicious software that encrypts files, making them inaccessible to the owner. In recent years, the trend has shifted toward double extortion, where attackers not only encrypt data but also steal it, threatening to leak it if the ransom is not paid. This adds a layer of reputational and legal risk to the initial operational disruption caused by encryption.