I wish CitizenLab would revisit this topic (or visit it at all, ot sure if they have) about BFU vs AFU mode now. Unless content has CompleteProtection, i believe certain important things can be accessed regardless or lock status if you’ve at least unlocked from boot once…

I know lockdown mode is supposed to prevent unauthorized usn accessories from connecting but the devil is always in the implementation and I’m not super certain Apple hasn’t fudged the details in some small nuanced but very real way as some people will likely come to find out. A little bit conjecturey but there’s reason to be skeptical.