Though this sounds like a joke, former Vice President Don Cheney and his doctors were legitimately scared about him getting assassinated via terrorists hacking into his defibrillator and causing a heart attack. So they turned off the wireless feature so nobody would kill him via heart hack.
The extra security measure (or is it paranoia?) was revealed in a 60 Minutes interview set to air on Sunday. In a transcript, Dr. Jonathan Reiner said:
“And it seemed to me to be a bad idea for the vice president to have a device that maybe somebody on a rope line or in the next hotel room or downstairs might be able to get into— hack into”
Cheney's issues have been poked fun of all over late night television, cracked in the back halls of the government and is a running joke meant to dig at a cold man. If you watch the TV show Homeland, you'd recognize that murdering a public official by hacking the heart was a plot on the show. Apparently it was art mimicking real life because Cheney realized the risk he was running if terrorists could tap into his heart. [Politico]