SonicWall, a leading cybersecurity vendor, has confirmed that a data breach impacted all users of its cloud backup service. The incident, initially reported as affecting less than five percent of customers, has been expanded to include every user of the MySonicWall feature. The compromised files, which include encrypted credentials and firewall configuration data, pose a significant risk if exploited by malicious actors. The company warns that while encryption remains in place, the stolen data could enable attackers to carry out targeted attacks on affected organizations. Security experts have emphasized the critical importance of firewall configurations, as they often contain sensitive information such as user permissions, DNS settings, and certificates. The breach highlights the need for continuous monitoring and updates to protect against such threats. SonicWall has urged customers to check for updates and review their security protocols to mitigate potential risks.