Hackers Actively Scan SonicWall Firewalls, 597K Sessions Seen
Mon May 25 2026
Monitoring
Networking
Vulnerability
cyberpress.org
A massive and sustained surge in reconnaissance activity targeting SonicWall SonicOS management interfaces. Between May 9 and May 18, 2026, GreyNoise recorded a dramatic spike on its SonicWall SonicOS API Scanner tag. The May 12 peak of approximately 597,000 sessions represents the largest single-day total recorded on this tag in the past 90 days. It is roughly 46 […]
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