A proof-of-concept neural brain implant providing speech

would you need an antenna for your brain implant to tx/rx those signals? what shape would that antenna need to be? would it need to be a rigid antenna that would have to stick up out of one's head? would it be a curly pigtail style or straight semi-rigid yet flexible so it could bend when passing through doors like the CB antennas of yesteryear? Could it be very flexible like a cable so you could run it down your back and under your clothing?

would your antenna be susceptible to crosstalk, and would that interference come across as new voices in your head? in fact, i wonder what the signalling protocol would be so that the message is only be received by the intended recipient, something like wifi? to that, would someone be able to tune into the spectrum around them and see the metadata of these telepathic signals to see who was talking to whom, when, and for how long. obviously, i'm assuming the actual signals will be encrypted so that these conversations will be private. will the NSA be able to pick up these signals from their satellites and be able to listen in? or will the gov't force backdoors into these communications?

i know this might sound conspiratorial, but all of these are valid concerns being dealt with now, and only sound conspiratorial if you've have your head in the sand. these are also questions that startups tend to ignore. look at the IoT market that never considered any potential security issues, and now we have massive bot farms. i know i wouldn't want to be used as a bot because my neural implant manufacture never considered what a hacker might do once they gained access