Simon Property Group

Simon Property Group

Data Breach on October 30, 2025
Data Breach Report
Victimsimon.com
Claimed ByMedusa
Date DiscoveredOct 30, 2025
DescriptionSimon Property Group Inc. is a global real estate investment trust (REIT) based in the USA (Indiana), owning and operating premier shopping, dining, and mixed-use destinations.
Leak SizeUnknown

Credential Exposure for simon.com

We've indexed 14,687 @simon.com accounts from external breaches, plus 549 credentials for simon.com itself.

Last checked Sep 27, 2026

@simon.com addresses from external breaches
Combo lists12,870 accounts · most recent Sep 26, 2026
Third-party breaches2,843 accounts · across 367 breaches · 2,513 with a plaintext password · most recent Jan 25, 2026
Phishing pages29 accounts · most recent Aug 12, 2026
Passwords for simon.com accounts
Combo lists375 logins · most recent Sep 25, 2026
Infostealer logs209 logins · 153 infected devices · most recent Sep 27, 2026

Logins may belong to customers or to staff, and the data doesn't say which. None of this is necessarily connected to the ransomware attack above.

Is your organization next?

Simon Property Group was breached. Check if your company's credentials have been exposed in this or other data breaches.

Check your exposure →

Continuous dark web monitoring alerts you when we find leaked credentials or session tokens for your company.