Mayer Brown

Mayer Brown

Data Breach on August 10, 2026
Data Breach Report
Victimmayerbrown.com
Claimed ByBusinessDataLeaks
Date DiscoveredAug 10, 2026
DescriptionMayer Brown is a global law firm based in the USA (Illinois), providing legal services to major corporations, financial institutions, and investment funds worldwide, specializing in corporate, financial, transactional, and commercial legal matters.
Leak SizeUnknown

Credential Exposure for mayerbrown.com

We've indexed 2,262 @mayerbrown.com accounts from external breaches, plus 23 credentials for mayerbrown.com itself.

Last checked Sep 6, 2026

@mayerbrown.com addresses from external breaches
Third-party breaches2,233 accounts · across 313 breaches · 2,078 with a plaintext password · most recent Feb 26, 2026
Combo lists1,017 accounts · most recent Aug 29, 2026
Passwords for mayerbrown.com accounts
Combo lists20 logins · most recent Aug 29, 2026
Infostealer logs8 logins · 7 infected devices · most recent Aug 26, 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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