Patent ID: 8051465

Claim:
A method in a computer system for authenticating a source of a submission, comprising: receiving an initial submission corresponding to a source; receiving a first secure token corresponding to the source, the first secure token including a secure state identifier; determining whether the initial submission includes a received state identifier that corresponds to the secure state identifier received in the first secure token; if the initial submission includes a received state identifier that corresponds to the secure state identifier, and the received state identifier is determined to correspond to an active state for the source, processing the initial submission; if the initial submission does not include a received state identifier that corresponds to both the secure state identifier and an active state for the source: generating for display an interstitial page and sending the interstitial page and a second secure token to the source, the interstitial page including the active state identifier and information from the initial submission, the interstitial page further including at least one user-selectable element allowing for confirmation of the source of the initial submission through generation of an interstitial submission, the second secure token including the active state identifier as the secure state identifier; and if the interstitial submission is received confirming the source of the initial transmission and including the active state identifier, and the active state identifier matches the secure state identifier in the second secure token, processing the interstitial submission.