Masimo

Masimo

Data Breach on February 05, 2026
Data Breach Report
Victimmasimo.com
Threat Actor0APT
Date DiscoveredFeb 05, 2026
DescriptionMasimo Corporation is a medical technology company based in the USA (California), focused on developing patient monitoring devices, non‑invasive sensors.
Leak Size3.9TB

Credential Exposure for masimo.com

We've indexed 587 @masimo.com accounts from external breaches, plus 17 credentials for masimo.com itself.

Last checked Aug 16, 2026

@masimo.com addresses from external breaches
Third-party breaches565 accounts · across 160 breaches · 507 with a plaintext password · most recent Jan 13, 2026
Combo lists149 accounts · most recent Aug 7, 2026
Passwords for masimo.com accounts
Combo lists16 logins · most recent Aug 6, 2026
Infostealer logs3 logins · 2 infected devices · most recent Nov 12, 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.

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