PC World writes, Pacemakers from several manufacturers can be commanded to deliver a deadly, 830-volt shock from someone on a laptop up to 50 feet away, the result of poor software programming by medical device companies. The new research comes from Barnaby Jack of security vendor IOActive, known for his analysis of other medical equipment such as insulin-delivering devices. Jack, who spoke at the Breakpoint security conference in Melbourne on Wednesday, said the flaw lies with the programming of the wireless transmitters used to give instructions to pacemakers and implantable cardioverter-defibrillators...