This brochure provides an in-depth overview of the WannaCry ransomware attack, one of the most widespread cyber incidents that affected over 150 countries and hundreds of thousands of systems globally by exploiting vulnerabilities in Windows SMB protocols. It explains the attack vector, propagation mechanisms, and business impact, including data loss, operational disruption, financial damage, and reputational risks. The document outlines comprehensive prevention and remediation strategies such as applying security patches, implementing strong access controls, enabling advanced email filtering, conducting regular backups, enforcing least privilege principles, and educating employees on cybersecurity best practices. It also emphasizes the importance of network segmentation, vulnerability man

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