SRI awarded a patent on 19 Nov 02 for “Hierarchical event monitoring and analysis” Patent 6,484,203 and says: “A computer-automated method of hierarchical event monitoring” How can SRI or anyone expect a patent like this to withstand scrutiny, since anyone can point to Marty’s 1999 LISA talk on Snort as prior art, or Todd Heberlein’s 1990 paper on network security monitoring? I started browsing through the linked patents and found just about everything under the sun has been patented.”]
Source: https://taosecurity.blogspot.com/2003/10/sri-patent-on-hierarchical-event.html