Authentication of data sharing

A method for authentication of data sharing, comprising:

• receiving, by a system and from a terminal, an account identifier, an authentication credential, and a request for data associated with a user based on an interaction between the terminal and a physical medium that stores the account identifier and the authentication credential,
• wherein the authentication credential and the account identifier are communicated from the physical medium to the terminal, and
• wherein the request is one of:
• a specific request that identifies one or more requested data items associated with the account identifier, or
• a general request that does not identify any requested data items;
• authenticating, by the system, the request using the account identifier and the authentication credential;
• generating, by the system, content for a message based on whether the request is the specific request or the general request;
• transmitting, by the system and based on authenticating the request, the message to a user device based on user contact information associated with the account identifier;
• receiving, by the system and from the user device, an indication to approve transmission of the data to a third party device,
• wherein content of the indication depends on whether the request is the specific request or the general request;
• and
• transmitting, by the system, the data, or information that enables access to the data, to the third party device based on receiving the indication,
• wherein the data includes the one or more requested data items or one or more user-specified data items indicated in the indication to approve transmission of the data.

A non-transitory computer-readable medium storing a set of instructions, the set of instructions comprising:

• one or more instructions that, when executed by one or more processors of a system, cause the system to:
• receive, from a terminal, an account identifier, an authentication credential, and a request for data associated with a user based on an interaction between the terminal and a physical medium that stores the account identifier and the authentication credential,
• wherein the authentication credential and the account identifier are communicated from the physical medium to the terminal, and
• wherein the request identifies one or more requested data items associated with the account identifier;
• authenticate the request using the account identifier and the authentication credential;
• determine whether the request satisfies a pre-approval condition after authenticating the request;
• and
• transmit a first message to a user device associated with the user or transmit a second message to a third party device associated with the terminal based on whether the one or more requested data items satisfy the pre-approval condition,
• wherein the first message to the user device is transmitted if the one or more requested data items do not satisfy the pre-approval condition,
• wherein the second message to the third party device is transmitted if the one or more requested data items satisfy the pre-approval condition,
• wherein the first message to the user device requests approval to transmit the one or more requested data items to the third party device via the second message, and
• wherein the second message enables access to the one or more requested data items.