The remote controllers of some Medtronic MiniMed insulin pumps are vulnerable to cybersecurity risks. Unauthorized persons could record and replay the wireless communication from the remote to the MiniMed insulin pump leading to the administration of one ore more unintended boluses of insulin.

http://www.fda.gov/medical-devices/medical-device-recalls/medtronic-recalls-minimed-insulin-pumps-potential-cybersecurity-risks