via Purdue University Professor Shreyas Sen (Assistant Professor of Electrical and Computer Engineering and his students Debayan Das, Shovan Maity and Baibhab Chatterjee) comes a definative answer to securing the various machines and other connected implants we as a species are placing into and on our bodies to assist and record. Their work - entitled 'Enabling Covert Body Area Network using Electro-Quasistatic Human Body Communication' appears in Scientific Reports (a NatureResearch journal) (a portion of the Abstract of the journal entry appears below).

"Radiative communication using electro-magnetic (EM) fields amongst the wearable and implantable devices act as the backbone for information exchange around a human body, thereby enabling prime applications in the fields of connected healthcare, electroceuticals, neuroscience, augmented and virtual reality. However, owing to such radiative nature of the traditional wireless communication, EM signals propagate in all directions, inadvertently allowing an eavesdropper to intercept the information." - via the Nature ScientificResearch Journal publication entitled Enabling Covert Body Area Network using Electro-Quasistatic Human Body Communication'- via Purdue University Professor Shreyas Sen (Assistant Professor of Electrical and Computer Engineering and his students Debayan Das, Shovan Maity and Baibhab Chatterjee)