Hackers Actives Scanning SonicWall Firewall Interfaces – 597,000 Sessions Observed

A sharp rise in internet-wide scanning activity targeting SonicWall firewall management interfaces has been detected, raising concerns about a potential pre-disclosure reconnaissance phase tied to new vulnerabilities. Threat intelligence firm GreyNoise reported a significant surge in scanning of SonicWall SonicOS management APIs between May 9 and May 18, 2026. The most notable spike occurred on […]

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