SonicWall issued a security advisory concerning a MySonicWall cloud backup file incident, urging customer action. Attackers used brute force methods to compromise the MySonicWall.com web portal. The breach allowed access to a portion of customers’ preference files stored in cloud backups. These files contained encrypted credentials and sensitive information. This information could be exploited to access SonicWall Firewall devices. CISA recommends all SonicWall customers review the advisory immediately. Customers should log into their accounts to determine if their devices are vulnerable. At-risk customers must implement containment and remediation steps as outlined. The advisory provides detailed guidance for mitigating the security risks. The incident highlights the importance of proactive security measures and constant vigilance.