Kessler Collins targeted by Play ransomware group

• Ransomware group: Play
• Country: United States
• Sector: Professional Services
• Announcement date: September 28, 2023

The Play ransomware group has published an entry on its leak site claiming to have targeted Kessler Collins. The group listed the alleged data on September 28, 2023, marking a potential data breach for the professional services firm.

The ransomware group's claims

According to the announcement made by the Play ransomware group, the organization has been targeted in a cyberattack. This group has been known to be active since 2022 and is recognized for employing a double-extortion strategy in its operations. In a double-extortion scheme, attackers not only encrypt an organization's data to disrupt operations but also steal sensitive information to use as leverage, threatening to leak the stolen files if a ransom is not paid.

The group's announcement indicates that the incident involves a data leak. While the group has made these claims on their leak site, the full scope and impact of the incident remain difficult to assess due to the closed operational nature of the Play group.

Alleged data involved in the leak

The announcement claims that the stolen information includes a variety of sensitive and confidential materials. The group asserts that the data exfiltrated includes private and personal confidential information, as well as various documents related to both clients and employees. The specific types of data allegedly involved in this incident include:

• Client documents
• Employee documents
• IDs
• Tax records
• HR documents
• Financial information

The group has not provided information regarding the total size of the data or the specific number of files involved in the breach. Additionally, no information was provided regarding a ransom demand.

About Kessler Collins

Kessler Collins is a law firm based in Dallas, Texas. The organization provides legal consulting and representation services across various practice areas.

Analysis and industry implications

The alleged leak may pose significant risks to client confidentiality and the security of employee data. Because Kessler Collins is based in the United States, a potential data breach of this nature could lead to intense scrutiny under state-level data protection laws and from various regulatory bodies.

The use of the double-extortion method by the Play group may increase secondary risks for the organization and the individuals affected. These risks include the potential for identity theft or the execution of targeted phishing attacks, which are often fueled by the threat of publishing stolen data. When attackers possess sensitive documents such as tax records, IDs, and financial information, the risk of subsequent social engineering attacks increases significantly.

For organizations operating within the professional services sector, maintaining robust data protection measures is essential to mitigate these types of threats. Common defensive steps for organizations include implementing strict access controls, maintaining comprehensive logging and monitoring to detect unauthorized data movement, and ensuring regular backups are stored offline or in immutable environments. Furthermore, because these groups often target sensitive client information, maintaining strong encryption for data at rest and in transit is a critical component of a modern cybersecurity posture.