This could pretty much be the beginning of the end of everything, if misaligned models wanted to they could install killswitches everywhere. And you can't trust security updates either so you are even more vulnerable to external exploits.
It's really scary, I fear the future, it's going to be so bad. It's best to not touch AI at all and stay hidden from it as long as possible to survive the catastrophe or not be a helping part of it. Don't turn your devices into a node of a clandestine bot net that is only waiting to conspire against us.