Every biohacking community ends up with a page like this talking about implants. "Yes, we implant ourselves with little devices that interact with electromagnetic radiation. No, you probably didn't have such a device implanted in you without your knowledge. If you did, it wouldn't be much use to your adversaries. Please seek psychiatric help".

This sounds interesting; got some links? Not to the psychiatric help pages, I mean, the pages about how they make their implants.