US Patent 9069976 Risk adjusted, multifactor authentication

A computer-implemented method comprising: receiving, from a device used by a user, a request to access a resource hosted by a computer system; identifying, by the computer system, a level of risk associated with the user requesting access to the resource; adjusting, by the computer system an authentication standard for access to the resource, adjusting based on the identified level of risk; determining values for authentication factors used in authenticating the user's access to the resource; applying weights to the values for the authentication factors; and determining, based on a comparison of the weighted values to the adjusted authentication standard, whether the user is authorized to access the resource.