CyberMaterial

CyberMaterial

Incidents

Chaos Gang Leaks Optima Tax Client Data

CyberMaterial's avatar
CyberMaterial
Jun 09, 2025
∙ Paid

The United States tax resolution firm Optima Tax Relief has unfortunately suffered a significant and damaging Chaos ransomware attack. The responsible threat actors are now reportedly leaking sensiti…

User's avatar

Continue reading this post for free, courtesy of CyberMaterial.

Or purchase a paid subscription.
© 2026 CyberMaterial · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture