2018 www.wired.com/story/pacema.... Although iirc the connection was hard to make from more than a couple feet away without a lot of hardware. The wireless on them was not powerful & was designed to be accessed from very close (like the surface of the person's skin)
A New Pacemaker Hack Puts Malware Directly on the DeviceResearchers at the Black Hat security conference will demonstrate a new pacemaker-hacking technique that can add or withhold shocks at will.www.wired.com