Kaseya Ransomware Attack Overview

The report summarizes the July Kaseya VSA compromise in which the REvil (Sodinokibi) ransomware operators leveraged a vulnerability/zero-day to push a malicious hotfix through on-prem Kaseya VSA instances, using roughly 40 compromised MSP customers to infect over 1,000 downstream organizations and demand $70M in bitcoin; it discusses the attack mechanics, supply-chain implications, and defensive lessons.