Simon Property Group

Simon Property Group

Data breach claim reported October 30, 2025
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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

Breach claims on this page are published by threat actors and haven't been verified by Breachsense.

Credential Exposure for simon.com

We've indexed 15,071 @simon.com accounts from external breaches, plus 701 credentials for simon.com itself.

Last checked Nov 8, 2026

@simon.com addresses from external breaches
Combo lists13,266 accounts · most recent Nov 8, 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 lists520 logins · most recent Nov 8, 2026
Infostealer logs236 logins · 157 infected devices · most recent Nov 8, 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.

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