MSG.COM Listed by clop Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

The Madison Square Garden Company's website MSG.COM was listed by the clop ransomware group on November 21, 2025. The listing states that internal files were exfiltrated in a ransomware attack, though the number of individuals affected and the full scope of any data involved have not been disclosed. This incident draws attention to data handling practices at organizations that manage large volumes of customer and operational information in the sports and entertainment industry.

Breaking down the breach

The available information is limited to the group's public listing of MSG.COM. It claims internal files were taken during a ransomware operation. No Reported Details have been released regarding the date of the intrusion, the volume of data, the method of initial access, or whether any data was subsequently published. The number of people affected remains unknown.

The group behind it: clop

Clop is a ransomware operator known for encrypting victim systems and exfiltrating data before demanding payment. The group maintains a leak site where it lists organizations it claims to have targeted, often as part of a double-extortion approach that combines encryption with the threat of data release. Clop has appeared in multiple public incidents across different industries in recent years, though each listing represents the group's own assertion rather than an independently verified event.

Who is MSG.COM?

MSG.COM is operated by The Madison Square Garden Company, a United States-based sports and entertainment firm. The site provides information and services related to the company's properties, including the New York Knicks, the New York Rangers, and Madison Square Garden itself. Typical functions include event schedules, news updates, and ticket sales. Organizations of this type routinely process customer account data, payment details, and correspondence connected to events and memberships.

What data was at risk

The listing refers only to internal files exfiltrated in a ransomware attack. No further breakdown of file categories or data fields has been made public. While companies in this sector commonly hold records such as names, contact information, purchase histories, and login credentials, the precise contents of the files in this case are unconfirmed.

Why it matters

When internal files from an entertainment company are claimed to have been taken, the primary concern is the potential presence of personal or financial information belonging to customers and staff. Even without confirmed scale, such exposure can support follow-on fraud or targeted phishing. For the organization, the incident adds to the operational and reputational costs already associated with ransomware response and any required regulatory notifications.

What to do if you're exposed

Individuals who hold accounts with MSG.COM or similar services should review recent account activity, change passwords, and enable multi-factor authentication where available. Monitoring bank and credit statements for unusual transactions provides an additional layer of protection. Readers can run a free exposure scan of their email address to check whether their information appears in known breach data sets.

AICompiled with AI assistance from public sources and published under our editorial standards.