Bad, if true.
https://securityaffairs.com/199415/ai/ai-hallucination-nearly-triggered-a-us-china-military-confrontation.html
I saw that elsewhere. Seems to be true. And the latest in a long line of near misses. Not counting "intentional" near misses like where the Soviet officer refused a direct order during the Cuban Missile Crisis and did not launch the nukes despite being ordered to do so.
1960: NORAD interprets moonrise over Norway as a massive Soviet attack
1962: soldiers on Okinawa receive the order to launch and choose to ignore it
et cetera
https://en.wikipedia.org/wiki/Nuclear_close_calls#Unintentional_close_calls
We are all still here because we have had really good luck and some smart and heroic people with their fingers on the buttons... so far.