Implantable medical devices, in particular, implantable cardioverter defibrillators (ICD), provide lifesaving therapies to the patients with ventricular tachyarrhythmia/ ventricular fibrillation (VT/VF). The ICD therapies are in the form of anti-tachycardia pacing (ATP) or high voltage shocks. The remote monitoring systems for ICDs collect large quantities of data that present opportunities and challenges to patient management and clinical research. One of the challenges of this industry is inappropriate shocks for non-ventricular arrhythmias (non VT/VF). The presentation will go into some detail to discuss the challenges and their solution with respect to reducing inappropriate shocks.