RE/MAX Listed by medusa Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

RE/MAX, the global real estate franchisor, was listed by the Medusa ransomware group on May 27, 2025. Public details indicate that the group claims to have exfiltrated 151.80 GB of internal files in a ransomware attack. The number of people affected remains unknown, and no independent confirmation of the full scope has been made public.

This listing matters because RE/MAX operates as a major real-estate network handling sensitive business and personal information across franchises. Any confirmed exposure of internal files could affect employees, agents, and clients, though the exact contents and verification status are limited to the group's claims and the reported summary.

Breaking down the breach

According to available records, RE/MAX was listed by the Medusa ransomware group on May 27, 2025. The group claims that internal files totaling 151.80 GB were exfiltrated during a ransomware attack. Public detail does not specify the precise date of the intrusion, the initial access method, or any ransom demand. The number of individuals potentially affected is listed as unknown. No further technical indicators, such as malware variants or compromised systems, have been disclosed in the reported facts. The incident is framed solely as a listing on the group's leak site, which remains an unverified claim unless separately confirmed by the organization or independent investigators.

RE/MAX is described in the summary as a global real-estate franchisor founded in 1973 and a subsidiary of RE/MAX Holdings, with its corporate office at 5075 S Syracuse St, Denver, Colorado, 80237, United States, and approximately 140,000 employees. Beyond the claimed data volume and the characterization of the material as internal files, no additional breach metrics—such as file counts, specific repositories, or timelines of data movement—have been provided.

Who is medusa?

Medusa is a well-documented ransomware group that operates under a ransomware-as-a-service model. Public reporting over recent years shows that the group typically employs double-extortion tactics: encrypting systems while also exfiltrating data and threatening to publish it on a dedicated leak site if payment is not made. Medusa has previously listed a range of corporate and institutional victims across sectors, using its site to post samples or full archives as pressure. The group often claims responsibility through these listings rather than through direct statements to media.

In this case, the listing of RE/MAX is presented as a claim by Medusa. No public statements from the group beyond the listing itself, nor any independent forensic confirmation of the claimed 151.80 GB volume or the nature of the files, appear in the available facts. Established patterns of Medusa activity include targeting organizations with substantial internal data holdings and using leak-site postings to amplify pressure, but those general tactics do not constitute verified details about the RE/MAX incident.

Who is RE/MAX?

RE/MAX is a global real-estate franchisor founded in 1973 and operates as a subsidiary of RE/MAX Holdings. Its corporate headquarters is located at 5075 S Syracuse St, Denver, Colorado, 80237, United States, and the organization is associated with roughly 140,000 employees. As a franchisor, RE/MAX supports a network of independently owned and operated real-estate offices that facilitate residential and commercial property transactions worldwide.

Organizations of this type typically maintain records related to property listings, agent and franchisee information, client contact details, transaction documentation, and internal corporate files such as human-resources and operational data. A breach involving internal files at a firm of this scale is consequential because real-estate networks handle both personal identifiers of clients and agents and commercially sensitive business records. Even when the precise contents remain unconfirmed, the potential reach across a large franchise system elevates the incident's relevance for those whose information may have been stored in corporate or franchise systems.

What was likely exposed

The reported facts state that internal files were exfiltrated in a ransomware attack, with the total amount of data leakage claimed at 151.80 GB. No specific data types beyond "internal files" are named, and the exact contents remain unconfirmed. Public detail does not identify whether the material included employee records, client databases, financial documents, or other categories.

Real-estate franchisors of RE/MAX's profile commonly hold personally identifiable information of clients and agents, property transaction records, franchise agreements, and internal corporate documents. Because the facts provide only the broad description of internal files and the claimed volume, any assertion of particular data categories would be speculative. The precise nature of what was taken, if anything, has not been independently verified in the available record.

The real-world impact

For individuals whose information may have been among the internal files, the primary risks include potential misuse of personal details for phishing, identity fraud, or unauthorized contact. Without confirmed data types or an affected-person count, these risks cannot be quantified, yet the possibility remains for anyone who has interacted with RE/MAX corporate systems or its franchise network. Employees and agents could face exposure of workplace-related records, while clients might see transaction or contact information at risk if such material was included.

For the organization itself, a ransomware incident of this description can disrupt operations, require forensic investigation and remediation costs, and create reputational pressure. The claimed 151.80 GB volume, if accurate, suggests a substantial archive that could contain both operational and personal data, increasing the complexity of response. Because the listing is a claim by Medusa and the number of people affected is unknown, the full operational and human impact stays unconfirmed pending further disclosure.

If your data was in this claimed breach

If you have reason to believe your information may have been held by RE/MAX or its franchise network, begin by monitoring financial accounts and credit reports for unusual activity. Consider placing a fraud alert or credit freeze with the major credit bureaus and remain alert to unsolicited communications that reference real-estate transactions or personal details. Change passwords on any accounts that may have shared credentials with systems used in a professional or client capacity, and enable multi-factor authentication where available.

Readers can also run a free exposure scan of their email address to check whether their information has already surfaced in known breach data sets. This step provides an additional, practical way to assess personal exposure without relying solely on the limited public details of this incident. Continue to follow official statements from RE/MAX for any confirmed notifications or guidance specific to affected parties.

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