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Diabetes is a disease in which the body has a shortage of insulin a decreased capacity to use insulin or both People with this disease have to administer a synthetic insulin replacement into the body to regulate and stabilize their blood-sugar level The traditional insulin delivery method is through injection by a needle and syringe Deciding when to introduce insulin into the body requires frequent blood tests poking the finger An alternative to this method uses a Continuous Glucose Monitor CGM with a wireless sensor attached to a wire inserted into body tissue to measure electrical elements of fluids As a diabetic Jerome Radcliffe Cyber Threat Intelligence Analyst at IBM admits to joking around about a hacker breaking into his CGM He imagined that he would give himself an unwarranted extra dose of insulin forcing his blood-sugar level too low and render him unconscious leaving him in a coma or even dead After attending Defcon in 2009 he began to ponder the possibility of such a scenario So he hacked his own CGM to show how vulnerable wireless medical devices are to cyber threats He demonstrated this hack at Black Hat USA 2011According to Radcliffe he first collected publicly available data on his Medtronic CGM focusing on the wireless communication frequency and modulation method The user manual acted as a starting point and opening the CGM provided him more information like the RF chip model number Next Radcliffe recognized US regulations require all wireless devices sold receive approval by the Federal Communication Commission FCC On approval wireless devices receive a unique ID found in product manuals and detailed FCC verification and analysis documents become public Radcliffe also combed the US Patent Office for documents and found instructions on the CGMs functionality and manufacturing specifications RadcliffeFrom his research Radcliffe discovered the CGM sensor operated at 402142MHz under the MedRadio band an unlicensed mobile radio service designated by the FCC for transmissions associated
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