Fortinet SSL VPNs Hit by Global Brute-Force Wave Before Attackers Shift to FortiManager

Threat Score:
55
The Hacker News
3 days ago

Overview

Cybersecurity researchers are warning of a "significant spike" in brute-force traffic aimed at Fortinet SSL VPN devices. The coordinated activity, per threat intelligence firm GreyNoise, wasobservedon August 3, 2025, with over 780 unique IP addresses participating in the effort. As many as 56 unique IP addresses have been detected over the past 24 hours. All the IP addresses have beenclassifiedas malicious, with the IPs originating from the United States, Canada, Russia, and the Netherlands. Tar...

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