Some years ago I was in cyber security in the military being shown some new tech for our use. Was challenged to try and get past it after being explained it's basics. Took me one long line in Linux about 10 seconds.
Anomaly detection firewall with machine learning seemed like a good idea.
Setting it to aggressive response and then change the package header to the firewall's own address however made it kill itself.

We didn't deploy that firewall that I know of.