RS Development

RS Development

Data Breach on February 20, 2026
Data Breach Report
Victimrsdev.com
Threat ActorNightSpire
Date DiscoveredFeb 20, 2026
DescriptionRS Development is a software solutions company based in the USA (Michigan), offering application development and IT services.
Leak SizeUnknown

Credential Exposure for rsdev.com

We've indexed 6 @rsdev.com accounts from external breaches, plus 14 credentials for rsdev.com itself.

Last checked Aug 16, 2026

@rsdev.com addresses from external breaches
Third-party breaches6 accounts · across 13 breaches · 6 with a plaintext password · most recent Feb 8, 2021
Combo lists2 accounts · most recent Dec 3, 2025
Passwords for rsdev.com accounts
Combo lists14 logins · most recent Aug 2, 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?

RS Development 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.