Putnam

Putnam

Data Breach on June 15, 2023
Data Breach Report
Victimputnam.com
Claimed ByCL0P
Date DiscoveredJun 15, 2023
DescriptionPutnam Investments is a global money management firm with 75 years of investment experience.
Leak SizeUnknown

Credential Exposure for putnam.com

We've indexed 1,626 @putnam.com accounts from external breaches, plus 220 credentials for putnam.com itself.

Last checked Oct 4, 2026

@putnam.com addresses from external breaches
Third-party breaches1,602 accounts · across 148 breaches · 1,377 with a plaintext password · most recent Feb 7, 2026
Combo lists424 accounts · most recent Sep 25, 2026
Passwords for putnam.com accounts
Combo lists209 logins · most recent Oct 3, 2026
Infostealer logs48 logins · 25 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.

Is your organization next?

Putnam 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.