When we originally looked into Nymi, the wrist-worn authentication device that identifies users by their electrocardiogram (ECG), we were skeptical but open-minded. Published algorithms managed a 10% false accept rate, which, though far from perfect, might be good enough for some consumer applications. And perhaps Nymi could do even better.
Nymi promised a white paper with greater detail on their underlying technology, and I had high hopes it would put these questions to rest. Unfortunately, it didn’t.