A 'cloaking' device that stops computer hackers maliciously hijacking pacemakers' radio signals could save lives, say scientists.
Doctors are increasingly using wireless pacemakers to monitor the regulation of patients' heartbeats, and can even adjust the settings remotely.
But earlier this year a team of US scientists using a radio signal were able to simulate interference with the devices and claimed that, in theory, hijackers could shut them down or deliver potentially lethal electric shocks to millions of heart patients.
