Medtronic ignore original attempts to fix this problem back in August. As a wireless engineer focusing in the Healthcare vertical its always important to test all your medical devices prior to deployment. A simple port scan could yield valuable information and potential means to access these devices. Often times, vendors will leave default logon credentials allowing access.
The attack on wireless insulin pumps made by medical devices giant Medtronic was demonstrated Tuesday at the Hacker Halted conference in Miami. It was delivered by McAfee's Barnaby Jack, the same researcher who last year showed how to take control of two widely used models of automatic teller machines so he could to cause them to spit out a steady stream of dollar bills.
Read more:
http://www.theregister.co.uk/2011/10/27/fatal_insulin_pump_attack/