All academic and research institutes tend to accumulate patents and weaponize them. It's not fair to characterize SRI as a "non-practicing entity". Aside from all the things they build for defense / NSF, they did invent this thing called "Siri" that a lot of people use.
> They never built a commercial intrusion-detection product
No, but they did give away things like Bothunter away (which is admittedly HIDS).
I'm sympathetic to the argument against patents, etc. I was your competitor in the IDS space and also made a very fast IDS and exited, and also was harassed by people without a product in the market (over sending TCP RSTs to close connections, of all things, where there was loads of prior art).
> They never built a commercial intrusion-detection product
No, but they did give away things like Bothunter away (which is admittedly HIDS).
I'm sympathetic to the argument against patents, etc. I was your competitor in the IDS space and also made a very fast IDS and exited, and also was harassed by people without a product in the market (over sending TCP RSTs to close connections, of all things, where there was loads of prior art).