qualys.com

qualys.com

Data Breach on October 05, 2021
Data Breach Report
Victimqualys.com
Threat ActorCLOP
Date DiscoveredOct 05, 2021
DescriptionN/A
Leak SizeN/A

Credential Exposure for qualys.com

We've indexed 438 @qualys.com accounts from external breaches, plus 1,202 credentials for qualys.com itself.

Last checked Aug 16, 2026

@qualys.com addresses from external breaches
Third-party breaches370 accounts · across 80 breaches · 344 with a plaintext password · most recent Dec 18, 2025
Combo lists105 accounts · most recent Aug 8, 2026
Phishing pages8 accounts · most recent Aug 11, 2026
Passwords for qualys.com accounts
Combo lists1,042 logins · most recent Aug 15, 2026
Infostealer logs382 logins · 230 infected devices · most recent Aug 8, 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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