I recently had a discussion with one of my players about hacking cyberlimbs, cybereyes and other implants. He pointed out that basic eyes lack wireless capacity (unless you count imagelink, which is included in every cybereye), same as limbs - they do not have wireless capacity by themselves, only some of the mods do. With that in mind, "go fo the eyes" is one of most basic tactics hackers have in straight combat, so my question is, what they generally are capable of doing?

I know implants are devices, and, if it can be accessed wirelessly, it can be hacked. And possibly bricked. But if implant does not have wireless capacity by itself, only one of its functions does, can implant be attacked directly and bricked?