The list of medical gadgets vulnerable to being hacked wirelessly includes pace makers, intravenous pumps, and blood pressure cuffs, according to Smith.

Radcliffe was diagnosed with diabetes about 11 years ago, when he was 22, and recently employed his software skills to find out whether an insulin pump trusted to keep his blood sugar levels safe could be hacked.

He found he could remotely toy with dosage levels or turn it off.