Häufig gestellte Fragen
Researchers believe that the attackers gained access to sonicwall firewall configuration files stored in SonicWall’s cloud backup system by using valid credentials obtained through a targeted brute-force campaign. Once inside the cloud backup environment, the hackers were able to download configuration files containing VPN connection data, including pre-shared keys (PSKs) and other authentication details. These files could then be used to reconstruct or compromise VPN connections, giving attackers potential access to internal networks.
The incident highlights the importance of strong authentication practices and unique credentials for every VPN connection. Administrators are advised to rotate pre-shared keys, revoke unused accounts, and ensure that no credentials are reused across different VPNs or devices. Implementing multi-factor authentication and auditing access to SonicWall management interfaces are also recommended steps to reduce risk.
For detailed information on how to secure your VPNs and protect them against similar breaches, read the SonicWall VPN security article.