https://threatpost.com/abbott-addresses-life-threatening-flaw-in-a-half-million-pacemakers/131709/

Abbott (formerly St. Jude Medical) has released another upgrade to the firmware installed on certain implantable cardioverter defibrillator (ICD) or cardiac resynchronization therapy defibrillator (CRT-D) devices – a.k.a., pacemakers. About 465,000 patients are affected. The update will strengthen the devices’ protection against unauthorized access, as the provider said in a statement on its website: “It is intended to prevent anyone other than your doctor from changing your device settings.”

The patch is part a planned series of updates that began with pacemakers, programmers and remote monitoring systems in 2017, following 2016 claims by researchers that the then-St. Jude’s cardiac implant ecosystem was rife with cybersecurity flaws that could result in “catastrophic results.”