Nippon Steel

Nippon Steel

Data breach claim reported February 14, 2025
Add Breachsense as a preferred source on Google
Data Breach Report
Victimnipponsteel.com
Claimed ByBianLian
Date DiscoveredFeb 14, 2025
DescriptionNippon Steel Corporation is a major Japanese steel manufacturing company and one of the world’s largest steel producers.
Leak SizeUnknown

Breach claims on this page are published by threat actors and haven't been verified by Breachsense.

Credential Exposure for nipponsteel.com

We've indexed 127 @nipponsteel.com accounts from external breaches, plus 17 credentials for nipponsteel.com itself.

Last checked Nov 8, 2026

@nipponsteel.com addresses from external breaches
Combo lists100 accounts · most recent Nov 8, 2026
Third-party breaches35 accounts · across 31 breaches · 27 with a plaintext password · most recent Feb 26, 2026
Passwords for nipponsteel.com accounts
Combo lists15 logins · most recent Nov 8, 2026
Infostealer logs5 logins · 1 infected devices · most recent Sep 16, 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?

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

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