Mazars

Mazars

Data Breach on May 22, 2023
Data Breach Report
Victimmazars.com
Threat ActorALPHV
Date DiscoveredMay 22, 2023
DescriptionMazars is a leading international audit, tax and advisory firm.
Leak SizeUnknown

Credential Exposure for mazars.com

We've indexed 94 @mazars.com accounts from external breaches, plus 10 credentials for mazars.com itself.

Last checked Aug 16, 2026

@mazars.com addresses from external breaches
Third-party breaches88 accounts · across 32 breaches · 84 with a plaintext password · most recent Sep 30, 2024
Combo lists21 accounts · most recent Aug 6, 2026
Passwords for mazars.com accounts
Combo lists7 logins · most recent Aug 2, 2026
Infostealer logs5 logins · 4 infected devices · most recent Nov 25, 2025

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?

Mazars 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.