ACCEPTED
Please predict whether this patent is acceptable.PATENT ABSTRACT: A historical repository of device identifiers associated with sets of prior mean values and prior standard deviation values, is maintained. A device identification message is received from a suspect computer device and contains a device identifier and a measured device signature value. A mean value and a standard deviation value are determined based thereon, and used to update the prior mean value and the prior standard deviation value in one of the sets in the historical repository having an association to the device identifier. A prior frequency value is determined. A posterior probability value, indicating likelihood that the suspect computer device corresponds to a genuine computer device identified by the device identifier, is generated based on the mean value, the standard deviation value, and the prior frequency value. Whether the suspect computer device is permitted to access an electronic resource is controlled based on the posterior probability value.