Leidos

Leidos

Data Breach on May 29, 2023
Data Breach Report
Victimleidos.com
Claimed ByTrigona
Date DiscoveredMay 29, 2023
DescriptionLeidos is a leading systems integrator in the science, technology, and engineering space.
Leak SizeUnknown

Credential Exposure for leidos.com

We've indexed 13,867 @leidos.com accounts from external breaches, plus 409 credentials for leidos.com itself.

Last checked Sep 27, 2026

@leidos.com addresses from external breaches
Combo lists12,025 accounts · most recent Sep 26, 2026
Third-party breaches2,087 accounts · across 265 breaches · 1,919 with a plaintext password · most recent Dec 18, 2025
Passwords for leidos.com accounts
Combo lists344 logins · most recent Sep 26, 2026
Infostealer logs111 logins · 70 infected devices · most recent Sep 27, 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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