Hyatt

Hyatt

Data Breach on January 15, 2026
Data Breach Report
Victimhyatt.com
Claimed ByNightSpire
Date DiscoveredJan 15, 2026
DescriptionHyatt is a global hospitality company based in the USA (Illinois) that operates, franchises and licenses a broad portfolio of branded hotels, resorts, residence properties and vacation-ownership experiences worldwide.
Leak Size48.5GB

Credential Exposure for hyatt.com

We've indexed 15,934 @hyatt.com accounts from external breaches, plus 18,431 credentials for hyatt.com itself.

Last checked Oct 11, 2026

@hyatt.com addresses from external breaches
Third-party breaches15,065 accounts · across 984 breaches · 13,847 with a plaintext password · most recent Apr 19, 2026
Combo lists4,456 accounts · most recent Oct 10, 2026
Phishing pages26 accounts · most recent Aug 13, 2026
Passwords for hyatt.com accounts
Combo lists14,434 logins · most recent Oct 10, 2026
Infostealer logs5,948 logins · 4,117 infected devices · most recent Oct 10, 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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