Scanning Activity on Palo Alto Networks Portals Jump 500% in One Day

Threat intelligence firm GreyNoise disclosed on Friday that it has observed a spike in scanning activity targeting Palo Alto Networks login portals.
The company said it observed a nearly 500% increase in IP addresses scanning Palo Alto Networks login portals on October 3, 2025, the highest level recorded in the last three months. It described the traffic as targeted and structured, and aimed