A surge in Akira ransomware attacks targeting SonicWall SSL VPN connections has been observed since mid-July 2025, primarily exploiting unpatched versions of SonicOS. Attackers gain unauthorized access, often bypassing Multi-Factor Authentication (MFA), and can quickly escalate to data encryption and exfiltration within hours. SonicWall has issued patches for a critical zero-day vulnerability, but many devices remain vulnerable as of 2025.