Abstract: An account holder is authenticated using payment account transaction data. In one example, an authenticator receives an authentication request to authenticate the account holder from an organization. The request includes details of a past transaction provided to the organization by the account holder. In response to the authentication request, a response is communicated to the organization, indicating approval or denial of the authentication request based on whether the details of the past transaction match information stored in a transaction database managed by the payment network.

Abstract: A computer system includes a database, a communication interface, and a processor. The processor is programmed to receive a request message from an issuer computing device. The consent message includes a client ID and encrypted transaction card details for a transaction card account. The processor is also programmed to decrypt transaction card details. The processor is also programmed to match the client ID to the transaction card details using a BIN mapping table stored in the database. Based on the mapping, the processor generates an issuer access token. The issuer access token is associated with the transaction card account. The processor stores the issuer access token in the database and transmits the token to the issuer computing device.

Abstract: A computer system includes a database, communication interface, and processor(s). The processor(s) is programmed to receive a consent message from a cardholder computing device. The consent message includes cardholder consent information indicating consent to one or more data services. The processor(s) is also programmed to receive transaction card details from the cardholder computing device. The transaction card details correspond to a transaction card of a cardholder and are associated with a financial account of the cardholder. Based on the transaction card details, the processor(s) generates a digital access token. The digital access token is associated with the financial account and the cardholder consent information. The processor(s) stores the digital access token in the database, transmits a cardholder authentication request message to an issuer, and receives an authentication ID from the cardholder computing device.

Abstract: A computer system includes a database, a communication interface, and a processor(s). The processor(s) is programmed to receive a consent message from a cardholder computing device. The consent message includes cardholder consent information indicating consent to one or more data services. The processor(s) is also programmed to receive transaction card details from the cardholder computing device. The transaction card details correspond to a transaction card of a cardholder and are associated with a financial account of the cardholder. Based on the transaction card details, the processor(s) generates a digital access token. The digital access token is associated with the financial account and the cardholder consent information. The processor(s) stores the digital access token in the database, transmits a cardholder authentication request message to an issuer, and receives an authentication ID from the cardholder computing device.

Abstract: A computer system includes a database, a communication interface, and a processor(s). The processor(s) is programmed to receive a consent message from a cardholder computing device. The consent message includes cardholder consent information indicating consent to one or more data services. The processor(s) is also programmed to decrypt transaction card details included in a secure request message. The transaction card details correspond to a transaction card of a cardholder and are associated with a financial account of the cardholder. Based on the transaction card details, the processor(s) generates a digital access token. The digital access token is associated with the financial account and the cardholder consent information. The processor(s) stores the digital access token in the database, transmits a cardholder authentication request message to an issuer, and receives an authentication ID from the cardholder computing device.

Abstract: A computer system includes a database, a communication interface, and a processor. The processor is programmed to receive a request message from an issuer computing device. The consent message includes a client ID and encrypted transaction card details for a transaction card account. The processor is also programmed to decrypt transaction card details. The processor is also programmed to match the client ID to the transaction card details using a BIN mapping table stored in the database. Based on the mapping, the processor generates an issuer access token. The issuer access token is associated with the transaction card account. The processor stores the issuer access token in the database and transmits the token to the issuer computing device.

Abstract: A computer system includes a database, a communication interface, and a processor(s). The processor(s) is programmed to receive a consent message from a cardholder computing device. The consent message includes cardholder consent information indicating consent to one or more data services. The processor(s) is also programmed to receive transaction card details from the cardholder computing device. The transaction card details correspond to a transaction card of a cardholder and are associated with a financial account of the cardholder. Based on the transaction card details, the processor(s) generates a digital access token. The digital access token is associated with the financial account and the cardholder consent information. The processor(s) stores the digital access token in the database, transmits a cardholder authentication request message to an issuer, and receives an authentication ID from the cardholder computing device.