Thomas H. Lee

Thomas H. Lee

Data Breach on July 15, 2026
Data Breach Report
Victimthl.com
Threat ActorQilin
Date DiscoveredJul 15, 2026
DescriptionThomas H. Lee Partners is a private equity firm based in the USA (Massachusetts), specializing in middle-market investments across healthcare, financial technology, and technology-enabled business services.
Leak SizeUnknown

Credential Exposure for thl.com

We've indexed 141 @thl.com accounts from external breaches, plus 16 credentials for thl.com itself.

Last checked Aug 23, 2026

@thl.com addresses from external breaches
Third-party breaches119 accounts · across 59 breaches · 104 with a plaintext password · most recent Dec 18, 2025
Combo lists96 accounts · most recent Aug 7, 2026
Passwords for thl.com accounts
Combo lists16 logins · most recent Aug 16, 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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