Jail breaking is a deliberate and involved process, in some cases something that the manufacturer even allows for.
It’s not really the same as a random piece of JavaScript on a webpage jail breaking your phone. I think having a rootable device doesn’t inherently mean your device is insecure.
Re:Unc0ver Jailbreak for iOS 11.0 to 13.5
by ValentineC on Sunday May 24, 2020 @02:11PM
(#23293356)
> It’s not really the same as a random piece of JavaScript on a webpage jail breaking your phone. I think having a rootable device doesn’t inherently mean your device is insecure.
Heh this was actually the case for a couple of Safari-based jailbreaks, all the way up to 9.3.4: https://en.wikipedia.org/wiki/JailbreakMe
If it was jail-breakable, that security was never there in the first place.