Abstract: A method to secure file origination, access and updates between a sender and a receiver is provided.

Abstract: A method for exclusion-based imposter screening is provided. The method includes obtaining a plurality of biometrics related to a payment card owner, wherein the payment card owners owns a payment card. The method also includes, during at least one transaction offer involving the payment card at a point of sale terminal of a seller, obtaining a plurality of biometrics related to a customer entering into the at least one transaction offer. The method also includes comparing the plurality of biometrics related to the payment card owner to the plurality of biometrics related to the customer. The method also includes excluding the customer from the at least one transaction offer if it is determined that the plurality of biometrics related to the customer and the plurality of biometrics related to the payment card owner cannot be from a single person.

Abstract: A method for exclusion-based imposter screening is provided. The method includes detecting a trigger event related to a payment card owned by a payment card owner and requiring the payment card owner to register payment card owner identification data after the trigger event. The method also include, during at least one transaction offer following the trigger event, obtaining customer identification data of a customer entering into the at least one transaction offer and comparing the customer identification data to the payment card owner identification data. The customer is excluded from the at least one transaction offer if it is determined that the customer identification data and the payment card owner identification data cannot be from a single person.