In early August 2025, researchers from GreyNoise first observed a significant spike in brute-force attacks against Fortinet ...

A massive spike in brute-force attacks targeted Fortinet SSL VPNs earlier this month, followed by a switch to FortiManager, ...

If there's smoke? Fortinet warned customers about a critical FortiSIEM bug that could allow an unauthenticated attacker to ...

Coordinated brute-force attacks hit Fortinet SSL VPNs and FortiManager, involving 780+ malicious IPs from U.S., Canada, ...

Researchers have found that in roughly 80% of cases, spikes in malicious activity like network reconnaissance, targeted ...

Spikes in attacker activity often precede new cyber vulnerabilities. In 80 percent of cases we analyzed, significant spikes ...

GreyNoise plans to further build out its product with its $15 million Series A investment, which was led by Radian Capital with participation from CRV, Inner Loop, Stone Mill Ventures and Paladin ...

While GreyNoise has made no attribution, the level of tradecraft suggests a well-resourced and highly capable adversary." Also: Your old router could be a security threat – here's why and what to do ...

GreyNoise Intelligence today unveiled a new tool that aims to help security teams to more easily block known attackers who are seeking to exploit critical vulnerabilities on a large scale ...

Unfortunately, it requires addressing the alert to find that out. GreyNoise wants to help by filtering out benign security alerts, leaving security pros to deal with the ones that matter.

GreyNoise has been tracking the attack since March 17. In the months since, they’ve seen only 30 requests related to the attack, which indicates how quietly the campaign is operating.