Abbott released a firmware update for certain high-voltage implantable cardiac devices that strengthens their security and adds a vibrating battery performance monitor.

The update for implantable cardioverter defibrillators and cardiac resynchronization therapy defibrillators includes cybersecurity enhancements to help protect against unauthorized device access.

The upgrade also introduces a device-based battery performance feature to monitor the battery for abnormal behavior and vibrate to alert the patient if any issues are detected.