Mayors Machine Works listed on Play ransomware leak site

• Ransomware group: Play
• Country: United States
• Sector: Manufacturing
• Announcement date: September 9, 2025

The Play ransomware group has officially listed the United States-based manufacturing company Mayors Machine Works on its dedicated leak site. This announcement, published on September 9, 2025, serves as a public claim by the threat actor that the organization's data has been compromised during a cyberattack.

The details of the claim

According to the announcement posted on the group's platform, the Play ransomware group claims to have successfully breached the institution's systems. While the listing was made public on September 9, 2025, the group suggests that the actual compromise of the institution's data may have occurred earlier, specifically on September 2, 2025.

Ransomware leak sites are frequently used by cybercriminal groups to exert pressure on victims through a tactic known as double extortion. In such scenarios, threat actors do not merely encrypt a victim's files to disrupt operations; they also exfiltrate sensitive information before the encryption process begins. By threatening to release this stolen data on a public forum, the attackers aim to coerce the organization into paying a ransom to prevent the exposure of their proprietary or sensitive information.

Data involved in the incident

Regarding the specifics of the breach, the current records and available documentation do not provide details concerning the nature of the compromised or threatened data. There is no information available regarding the specific types of files, the total volume of data, or the total file count involved in this incident. Furthermore, no ransom demand has been specified in the current listing.

The listing names no data types at this time.

Organizational profile

Mayors Machine Works is a manufacturing company located in the United States. The organization specializes in the production of machine parts and provides precision machining services.

Analysis and potential implications

The Play group is a threat actor that has been observed since 2022. This group is known for operating in a relatively closed manner and employing double-extortion tactics to maximize their leverage over victims. The potential leak of an organization's data can lead to the exposure of critical trade secrets and sensitive operational information, which can be devastating for companies in the manufacturing sector.

Because Mayors Machine Works is a US-based entity, a potential data breach may trigger specific notification obligations under relevant state laws and federal regulations. Beyond the immediate regulatory concerns, the leaked data could potentially be utilized by malicious actors for identity theft or for conducting highly targeted phishing attacks against the organization or its partners.

Given the historical activities of the Play group, organizations targeted by such actors may need to remain vigilant against secondary attack risks. In the manufacturing sector, where supply chain integrity is paramount, a breach can have ripple effects across various business relationships. General defensive measures for organizations facing such threats often include maintaining robust backup protocols, implementing strict access controls, and ensuring continuous monitoring of network traffic to detect unauthorized exfiltration attempts.