The method comprises receiving an onboarding request for a first onboarding process of a first representation of a first user at a token issuance and transaction system, the request received from a transaction system, the request indicating a second onboarding process of a second representation of the first user at the transaction system. The method includes generating, based on performing the first onboarding process and receiving an indication of success of the second onboarding process, a link between the first and second representations at the token issuance and transaction system and the transaction system. The method includes receiving a pre-transaction request from the transaction system, the pre-transaction request indicating a transaction type and the link between the first and second representations. The method also includes determining, based on the link, whether to generate a payment token for completing a requested transaction corresponding to the pre-transaction request.

Systems, apparatuses, and methods for verifying physical presence of a mobile device as part of an electronic transaction. Tags may be generated and displayed on one or more display devices. Those tags, which may be time-limited, may be read by a mobile device to verify physical presence of the mobile device as a prerequisite to initiating, continuing with, or completing an electronic transaction, and/or as a decision point in how the electronic transaction is to be conducted.

A computer-implemented method of providing payment methods for an online transaction includes: receiving an unencrypted shopper identifier credential that is associated with a specific user and is input via a checkout user interface, wherein the checkout user interface is associated with the online transaction and is displayed at a user device; in response to receiving the unencrypted shopper identifier credential, generating a first encrypted shopper identifier credential based on the unencrypted shopper identifier credential; sending a first query that includes the first encrypted shopper identifier credential to a first payment instrument manager, wherein the first query requests an indication that the first encrypted shopper identifier credential is associated with an account for the first payment instrument manager; receiving a response from the first payment instrument manager that includes the indication; and causing the checkout user interface to be modified with a selection field, wherein the selection field is associated with the first payment instrument manager.

Proxied cross-ledger authentication techniques are disclosed. In various embodiments, a verifier presentation requirement is determined, the verifier presentation requirement indicating a set of elements required to be provided by a client to authenticate the client. An authentication contract instance is created on a market maker ledger not associated specifically with the verifier, the authentication contract instance including at least a subset of the elements required by the verifier presentation requirement. A verifier system associated with the verifier presentation requirement is configured to read information from the authentication contract instance, obtain from an issuer associated with the client an issuer revocation data associated with the authentication contract instance, and use the information read from the authentication contract instance and the issuer revocation data to authenticate the client.

A method for managing secure processing of electronic payment transactions includes receiving a request submitted by a merchant computing system for a security verifier. The security verifier is to be displayed on an electronic display associated with the merchant computing system. A set of security credentials received from a security service provider is measured against a security threshold. When the set of security credentials meets the security threshold, a uniform resource locator (“URL”) is transmitted to the merchant computing system. The URL identifies the security verifier to be retrieved and displayed at the electronic display associated with the merchant computing system.

A method and system for conducting an online payment transaction through a point of sale device. The method includes receiving input from a user selecting an item for purchase through the point of sale device; calculating a total purchase amount for the item in response to a request from the user to purchase the item; and sending payment authorization for the total purchase amount from the point of sale device to a payment entity, in which the payment authorization is sent to the payment entity via a mobile communication device of the user. The method further includes receiving a result of the payment authorization from the payment entity through the mobile communication device; and completing the payment transaction based on the result of the payment authorization.

In various embodiments, a system, method, and computer readable medium of the present disclosure comprises authenticating, by a processor of a computing device, credential information of a user of the computing device; releasing, by a processor of the computing device and in response to authenticating the credential information, a first secret element to a secure element processor of the computing device; verifying, by the processor of the computing device from the secure element processor of the computing device, that the user is an authorized user of a first transaction account by comparing the first secret element with an issuer element associated with the first transaction account; and activating, by the processor of the computing device, the first transaction account for a transaction on the computing device.

Embodiments of a smart card and systems and methods for secure data access using a smart card are described. The smart card may be formed a substrate and may include a microprocessor, a memory containing an applet, a counter, and a unique identifier. The smart card may dynamically generate a unique uniform resource location (URL) and transmit the URL to via a contactless communication interface to securely facilitate data access from other devices.

A method including receiving a request based on a sender initiating a funds transfer, wherein the funds transfer is for the sender to make a payment to a non-financial institution. The sender has a sender account at a sender financial institution. The method also can include obtaining sender identifying information from the sender. The method additionally can include sending at least a recipient public identifier and a payment amount for the payment to the sender financial institution to cause the sender financial institution to send a funds transfer request to a computer-implemented funds transfer network to initiate the payment from the sender account at the sender financial institution to a recipient account at a recipient financial institution. The funds transfer request does not include an account number of the recipient account. The computer-implemented funds transfer network is operated by an entity that is different from the recipient financial institution and the sender financial institution. Other embodiments are disclosed.

A method for processing a payment transaction via a proxy guarantor includes: receiving a transaction request between a user and a merchant including payment device data associated with a payment device of the user of a payment type not accepted by the merchant, and an indicator causing the payment transaction to be processed as a proxy guarantor transaction; identifying a guarantor associated with the user having a payment device of a payment type accepted by the merchant; communicating an authorization request to an issuer system associated with the guarantor to cause the issuer system of the guarantor to authorize the payment transaction; receiving an authorization response from the issuer system of the guarantor, the authorization response including a payment transaction approval indicator; and communicating a settlement request to an issuer system of the user.