Correctly defining the false accept and false reject ratios for biometrics technologies is an active research area. Our engineering team has made significant progress in developing metrics for evaluating the complex issue of FAR/FRR for continuous authentication. We applied this methodology to empirical data taken from a customer environment with some interesting results. The report and further details are available on request. If you have Behavio evaluation versions installed and are interested in knowing more about the FAR/FRR in your environment please contact us.