Simon Property Group Listed by medusa Ransomware Group
If you are a customer of Simon Property Group, here’s what is being claimed, and what it would mean for you.
Simon Property Group was listed on Medusa's leak site. Medusa claims to have stolen internal data. This is the group's claim, not a confirmed finding.
Editor’s note: The claims described below originate from a ransomware group’s leak-site posting and have not been independently verified by GalaxyWarden. A listing of this kind is an assertion made by the group during an extortion attempt. It is not evidence that a breach occurred, and we report it as a claim rather than as a finding.
Simon Property Group customer?
See what’s already exposed about you — free, 15sWe check your email against known public breach records and the sites that publish your address, then show you what to do about each one. We don’t hold this company’s data. No account, no card.
On October 28, 2025, Simon Property Group, one of the largest owners of shopping malls in the United States, appeared on the leak site of the Medusa ransomware group. The attackers claim to have exfiltrated internal files from the Indianapolis-based real estate investment trust, which operates hundreds of Premium Outlets, Mills centers, and other retail properties visited by millions of shoppers each year.
What's Publicly Reported from Reporting
Public reporting indicates that Simon Property Group was listed on the Medusa ransomware leak site on October 28, 2025. The company has not yet issued a detailed public statement confirming the breach or the volume of data involved. Available reporting describes the incident as a ransomware attack in which internal files were exfiltrated. The exact number of individuals whose personal information may have been exposed remains unknown at this time. Simon Property Group manages properties across the United States and internationally, meaning customer, tenant, vendor, and employee records could potentially be affected depending on what the stolen files contain.
Why This Matters for You and Your Family
When a company the size of Simon Property Group suffers a breach, ordinary people who shop at its malls, sign leases, apply for jobs, or attend events there can find their information caught up in the leak. Internal files often hold names, addresses, phone numbers, email addresses, dates of birth, and sometimes Social Security numbers or financial details. Once that data reaches a ransomware group’s leak site, it can be downloaded by identity thieves, fraudsters, and doxxers within hours. For you and your family, this means a heightened risk of account takeovers, tax fraud, loan applications in your name, or unwanted exposure of where you live and work.
Advertisement
BATECH StudioWe build it.We run it.Web apps, AI pipelines and internal tools — under your brand, not ours.Tell us what you need →
BATECH Studio and GalaxyWarden share common ownership.
The Doxxing and Identity-Chain Implications
Ransomware leaks rarely stop at one company. A single exposed email or phone number can be cross-referenced with data from previous breaches to build a complete profile. Attackers link your shopping-mall loyalty account to your child’s gaming username, your spouse’s work email, and your home address. This identity chain makes targeted harassment, swatting, or sophisticated social-engineering attacks far easier. Credential leaks like this one frequently cascade into gaming account takeovers, especially for children who reuse passwords or email addresses tied to family shopping accounts.
Medusa Ransomware Group Track Record
Public reporting attributes the attack to the Medusa ransomware group. The group emerged in 2021 and has since targeted organizations across multiple sectors. Notable prior victims include healthcare providers, technology firms, and other large retailers. Medusa’s typical playbook involves gaining initial access through phishing or exploited remote desktop credentials, exfiltrating sensitive files before encrypting systems, and then pressuring victims with threats to publish the stolen data on their leak site if ransom demands are not met. Their extortion style combines data leaks with distributed denial-of-service attacks in some cases.
What to do
- Run a DoxxScan to map every link between your handles, emails, phone numbers, and real identity so you can see exactly what chains back to the Simon Property Group breach.
- Rotate any password you used on Simon Property Group websites or loyalty programs anywhere else it is reused, and switch to 2FA through an authenticator app rather than text messages.
- Enable continuous DoxxScan monitoring across 13.1B+ breach records and 100+ platforms so the next time your information appears it is caught in hours, not months.
- Cover the household with DoxxScan family coverage that extends to dependents and children’s gaming accounts that often chain back to the same addresses and emails exposed in retail breaches.
- Let remediation specialists handle takedown requests across data brokers and exposed profiles for you while you focus on securing your own accounts.
The Simon Property Group listing on the Medusa leak site is a reminder that retail and real estate giants hold data that directly affects everyday families. Taking concrete steps now can limit how far this claimed breach travels. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, and hands-on remediation by specialists, including protection for your family’s gaming accounts that are often the next link in the doxxing chain.
What the free scan actually returns
Found on people-search siteswe remove these
These listings are live, public, and legal to remove — and removing them is what we do.
Found in breach recordsverifiedreported — unverified
Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.
Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.
For security and vendor-risk teams: a staff address in a leak does not mean you were breached — it usually means a third party was. We monitor a domain against 13.1B+ leaked records and tell you when one of your people appears. See what we would check →
Report details & sourcing
Related breaches
Everglades Boats Listed by termite Ransomware Group
Founded in 2001, Everglades Boats is a manufacturer of offshore fishing boats. The company is headqu…
Victory Personal Care, Inc Listed by nightspire Ransomware Group
Data is not available now.…
Meridian Logistics Group Listed by thegentlemen Ransomware Group
Full network image staged. ERP exports, dispatch DB and payroll archives recovered. Pending final in…