Elastic Security effectively protected users from the REvil ransomware attack that targeted Kaseya and its customers through a multi-layered approach, preventing 100% of the ransomware samples tested. The system emphasizes the importance of layered defenses, combining SIEM, Endpoint Security, and XDR capabilities to detect and prevent attacks before they cause damage. Elastic's signatureless MalwareScore model, which uses machine learning to preemptively stop unknown attacks, and behavioral ransomware prevention, which monitors potential ransomware activity in real-time, both played critical roles in thwarting the attack. The Kaseya attack, which affected between 800 and 1500 victims, highlighted the vulnerability of small businesses relying on MSPs, as the attackers demanded a $70 million ransom. Elastic Security continues to innovate with additional protections like canary files to detect ransomware behavior early and aims to protect global data through its open and comprehensive threat detection platform.