This research report delves into the WannaCry and Petya ransomware attacks, examining their impact, operational details, and preventative measures. The report analyzes the scope of these attacks, highlighting their global reach and the challenges they pose to organizations and individuals. It explores the technical aspects of the attacks, including their methods of infection, encryption techniques, and the motivations behind them. Furthermore, the report provides practical recommendations for mitigating the risks associated with ransomware attacks, emphasizing the importance of robust security measures, user awareness, and proactive threat management.