I always figured that internal 'ware was pretty much hardwired to your nervous system...
You're right about the YNT. Sorry, didn't catch it. (Was looking at the Ruthenium! :p) It worked for the armor I had previously; forgot to switch it. Will see what I can do to fix that.
not really, while you CAN switch off the wireless on them, you need to access them from time to time to perform routine diagnostic and software update.
if they don't have that, then to access them a surgery is needed.and all ware should be monitored at least once in half a year.
Those are peripheral nodes however and their ability for protection is somehow limited. They might be slaved to your link (granting +2 to hacking attempts resistance), operated via DNI (like to enable/disable wifi via DNI, but otherwise wifi capable) or be wifi-disabled devices all-together, with only DNI operation.