Users of pacemakers built by Abbott Labs are being recalled by the FDA.  The units have a flaw that allows the device to be compromised by hacking.  The vulnerability allows a cyber criminal to quickly drain the battery of a pacemaker or change it’s operation.

The recall is voluntary, but patients who have the pacemaker implanted will not have to have it removed.  A 3 minute programming update from outside the body needs to be performed to fix the vulnerability.

More details here  and here