McLaren Health Care

McLaren Health Care

Data Breach on October 02, 2023
Data Breach Report
Victimmclaren.org
Threat ActorALPHV
Date DiscoveredOct 02, 2023
DescriptionMcLaren Health Care, headquartered in Grand Blanc, Michigan, is a fully integrated health care delivery system committed to quality, evidence-based patient care and cost efficiency.
Leak SizeUnknown

Credential Exposure for mclaren.org

We've indexed 1,083 @mclaren.org accounts from external breaches, plus 91 credentials for mclaren.org itself.

Last checked Aug 16, 2026

@mclaren.org addresses from external breaches
Third-party breaches1,024 accounts · across 137 breaches · 734 with a plaintext password · most recent Jan 8, 2026
Combo lists268 accounts · most recent Aug 7, 2026
Passwords for mclaren.org accounts
Combo lists76 logins · most recent Aug 15, 2026
Infostealer logs29 logins · 17 infected devices · most recent Aug 1, 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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