ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,786,190, issued on Nov. 3, was assigned to Cisco Technology Inc. (San Jose, Calif.).

"Contextual validation for network devices" was invented by Robert Edgar Barton (Richmond, Canada), David John Zacks (Vancouver, Canada), Thomas Szigeti (Vancouver, Canada) and Flemming S Andreasen (Marlboro, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure describes techniques for validating a network device based on an operational context of the network device. The techniques may include receiving, via an intercepting node, a DNS query from a querying device. The techniques may include extracting the metadata from the DNS query. Based at least in par...