what is do you think about the following paraghragh

ECG Authentication

Biometric authentication is becoming more popular, but many of the methods are very expensive to implement and can have unpredictable results. For example, a iris scan is great in that each individual has a unique iris, but not every company can afford a eye scanner, and the scan itself requires the individual to remain still for around 15 seconds. If there is any movement the results will be useless.

I found a interesting article on the use of electrocardiogram signals for authentication. According to this study each individual has a unique ECG signal and, they claim, there is no way to duplicate this signal. Using this signal they developed a method of authentication which was over 98% effective and only had a 1.2% false acceptance rate. This seemed kinda high to me, but even retina scans (which are apparently the most accurate biometric scan currently) have a similar false acceptance rate.

Additionally, getting the ECG signal is probably much easier and less expensive than the alternatives, making it a more practical authentication solution for smaller businesses.