One major feature of modern medical devices, wireless remote control capability, is also their Achilles' heel. Jay Radcliffe's insulin pump and implanted devices like pacemakers can take instructions from distant doctors when their flow rate or timing needs to be adjusted. But the data they send is unencrypted, and with just the right set-up, nefarious third parties can reprogram them from distances of up to a half-mile.
If you're thinking, "But that could kill people!" the answer is, "Yep." And it could also, by the way, release individuals' names and diagnosis, since those are also being sent merrily over the airwaves without encryption.
Scientists recently came up with a method for protecting pacemakers with encryption. But it's not clear when, or whether, the industry will catch up with these security measures. In the meantime, you might consider moving to the Sahara and building a two-mile-square compound.