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SonicWall Investigates State-Backed Breach of Cloud Backup Service
First seen 2 Dec 2025, 18:33 UTC
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SonicWall reported unauthorized access to backup firewall configuration files in September 2025, attributed to a state-backed threat actor. The company engaged Mandiant for an investigation and communicated with partners and customers about remediation steps. The breach affected the MySonicWall cloud backup service, but no other SonicWall products were compromised.
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