Patent 11949697 was granted and assigned to Palo Alto Networks on April, 2024 by the United States Patent and Trademark Office.
Hierarchical scanning begins with communicating probes over the Internet to ports and networks addresses to determine publicly accessible devices. Based on responses to those probes, follow-up probes are determined to obtain additional information about the publicly accessible devices. The probes are transmitted from a system that is external to the networks corresponding to the network addresses. This provides an external view of the scanned networks and facilitates a probing paradigm that scales beyond a few networks.