flagstar.com

flagstar.com

Data Breach on October 05, 2021
Data Breach Report
Victimflagstar.com
Claimed ByCLOP
Date DiscoveredOct 05, 2021
DescriptionN/A
Leak SizeN/A

Credential Exposure for flagstar.com

We've indexed 2,850 @flagstar.com accounts from external breaches, plus 3,368 credentials for flagstar.com itself.

Last checked Oct 4, 2026

@flagstar.com addresses from external breaches
Third-party breaches2,793 accounts · across 230 breaches · 2,603 with a plaintext password · most recent Apr 19, 2026
Combo lists979 accounts · most recent Oct 2, 2026
Passwords for flagstar.com accounts
Combo lists3,197 logins · most recent Oct 4, 2026
Infostealer logs806 logins · 543 infected devices · most recent Sep 30, 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.

Is your organization next?

flagstar.com was breached. Check if your company's credentials have been exposed in this or other data breaches.

Check your exposure →

Continuous dark web monitoring alerts you when we find leaked credentials or session tokens for your company.