Count me out. Governments and corporations with literally trillions of dollars at their disposal can't keep their own systems secure. Guarantee any and all of this tech will be absolutely insecure voluntarily or involuntarily. Oh yeah, you've also got organizations like the NSA and CIA that Snowden has taught us about.

It will never be a good idea to put an implant in your brain that can interface (interfere) with your thoughts and senses while connected to the internet. If you're worried about Big Brother and surveillance today, today will look like the stone age if implants gain critical mass.