Harness

Harness

Data Breach on October 16, 2026
Data Breach Report
Victimharness.io
Claimed ByTheSevenDeadlySins
Date DiscoveredOct 16, 2026
DescriptionHarness is an AI-native software delivery company based in the USA (California), providing unified CI-CD, software security, and cloud cost management solutions for engineering teams.
Leak SizeUnknown

Credential Exposure for harness.io

We've indexed 22 @harness.io accounts from external breaches, plus 91 credentials for harness.io itself.

Last checked Oct 16, 2026

@harness.io addresses from external breaches
Third-party breaches14 accounts · across 8 breaches · 12 with a plaintext password · most recent Feb 15, 2026
Combo lists9 accounts · most recent Oct 15, 2026
Passwords for harness.io accounts
Combo lists56 logins · most recent Oct 9, 2026
Infostealer logs49 logins · 26 infected devices · most recent Oct 14, 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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