Ransomware victim disclosure
← All victimsSimon Property Group
Claimed by Medusa · listed 6 months ago
Status timeline
- Listed
Nov 7, 2025
- Data leaked
At a glance
- Group
- Medusa
- Status
- Data leaked
- Country
- United States
- Sector
- Financial Services
- Listed on leak site
- Nov 7, 2025
- Records
- 3.000 employees
About the victim
AI dossier — public-source company profileSimon Property Group is one of the largest real estate investment trusts (REITs) in the United States, specializing in the ownership, development, and management of premier shopping, dining, entertainment, and mixed-use destinations. The company operates hundreds of properties across North America, Europe, and Asia, including major regional malls, premium outlets, and The Mills centers. Simon is publicly traded on the NYSE under the ticker SPG.
- Industry
- Real Estate Investment Trust (REIT) – Retail Mall Operations
- Address
- 225 West Washington Street, Indianapolis, Indiana 46204, United States
- Employees
- 5000
- Founded
- 1960
Attack summary
Severity: high — Simon Property Group is a large publicly traded REIT with thousands of employees and extensive tenant relationships. A 'data_published' status indicates confirmed exfiltration and public release of data, which likely includes significant business-sensitive and potentially regulated PII at scale, warranting a high severity rating. Critical would require stronger confirmation of regulated data such as financial account records or medical data.The Medusa ransomware group claims to have attacked Simon Property Group and lists the case as 'data_published', indicating that exfiltrated data has been released or made available on their leak site. The leak post itself was inaccessible due to a CAPTCHA challenge, so specific details on data volume or type could not be confirmed from the post directly.
Data the group says was taken
AI dossier — extracted from the leak post- Corporate financial records
- Employee personally identifiable information (PII)
- Tenant contracts and lease agreements
- Internal business communications
- Legal and compliance documents
What the group claims
Simon Property Group is a leading real estate investment trust (REIT) based in Indianapolis, Indiana. Founded in 1993, it owns, develops, and manages premier shopping malls, outlets, and lifestyle centers across the United States and internationally. The company’s well-known properties include Premium Outlets and The Mills centers. Led by CEO David E. Simon, it focuses on creating high-quality retail and entertainment destinations that attract millions of visitors each year. Despite challenges from online retail, Simon Property Group continues to innovate by combining shopping, dining, and mixed-use spaces, maintaining its position as a global leader in retail real estate. company is headquartered in 225 West Washington Street, Indianapolis, Indiana 46204, USA. 3,000 employees
The leak post
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Sources
Source
Indexed 6 months agoThis page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.
