New Threat Group Discovered Targeting Brazilian Financial Institutions

CrowdStrike has identified a new cyber threat group named Slim Spider, targeting financial organizations in Brazil since at least March 2026. The group…

Brazilian financial institutions and nearby regions should review access logs, strengthen multi-factor authentication on critical crypto custody systems, and share indicators of compromise with their IT teams. Monitor CrowdStrike and other security sources as additional technical details about Slim Spider's methods become available.