Abstract: Examples describe data security for communication systems. One example includes validating a merchant system using merchant data and generating a set of merchant credentials. The set of merchant credentials is then used in authentication to facilitate a secure transaction, which involves automatically generating transaction data with a tokenized client account number associated with the secure transaction. A refund request associated with the secure transaction is received with the set of merchant credentials that are used for automatically authenticating the merchant system. The example then involves accessing a database that includes the transaction data for automatically facilitating settlement of a refund payment using the authenticated merchant system and the transaction data.

Abstract: Examples described herein include systems, methods, instructions, and other implementations for data security with integrated promotion systems. In one example, account security system receives a checkout communication that includes data describing a validated checkout system of a merchant system, where the checkout communication does not include a purchase promotion option. A client token is transmitted in response to an authentication that the checkout communication is from the validated checkout system, and an account communication including the client token and secure client information is received from a client device. A plurality of promotion options associated with the secure transaction is transmitted in response to the account communication, and a promotion selection for the secure transaction is received from the client device and not from the merchant system.

Abstract: Examples described herein include systems, methods, instructions, and other implementations for data security with integrated installment payment systems. In one example, account security system receives a checkout communication that includes data describing a validated checkout system of a merchant system. A client token is transmitted in response to an authentication that the checkout communication is from the validated checkout system, and an account communication including the client token and secure client information is received from a client device. An installment payment communication associated with the secure transaction is received from a system other than a merchant system involved in the transaction. The secure transaction is then facilitated following receipt of the installment payment communication.

Abstract: Examples describe data security for communication systems. One example includes validating a merchant system using merchant data and generating a set of merchant credentials. The set of merchant credentials is then used in authentication to facilitate a secure transaction, which involves automatically generating transaction data with a tokenized client account number associated with the secure transaction. A refund request associated with the secure transaction is received with the set of merchant credentials that are used for automatically authenticating the merchant system. The example then involves accessing a database that includes the transaction data for automatically facilitating settlement of a refund payment using the authenticated merchant system and the transaction data.

Abstract: Examples described herein include systems, methods, instructions, and other implementations for data security with integrated installment payment systems. In one example, account security system receives a checkout communication that includes data describing a validated checkout system of a merchant system. A client token is transmitted in response to an authentication that the checkout communication is from the validated checkout system, and an account communication including the client token and secure client information is received from a client device. An installment payment communication associated with the secure transaction is received from a system other than a merchant system involved in the transaction. The secure transaction is then facilitated following receipt of the installment payment communication.

Abstract: Examples described herein include systems, methods, instructions, and other implementations for data security with integrated installment payment systems. In one example, account security system receives a checkout communication that includes data describing a validated checkout system of a merchant system. A client token is transmitted in response to an authentication that the checkout communication is from the validated checkout system, and an account communication including the client token and secure client information is received from a client device. An installment payment communication associated with the secure transaction is received from a system other than a merchant system involved in the transaction. The secure transaction is then facilitated following receipt of the installment payment communication.

Abstract: Examples described herein include systems, methods, instructions, and other implementations for data security with integrated promotion systems. In one example, account security system receives a checkout communication that includes data describing a validated checkout system of a merchant system, where the checkout communication does not include a purchase promotion option. A client token is transmitted in response to an authentication that the checkout communication is from the validated checkout system, and an account communication including the client token and secure client information is received from a client device. A plurality of promotion options associated with the secure transaction is transmitted in response to the account communication, and a promotion selection for the secure transaction is received from the client device and not from the merchant system.

Abstract: Examples describe data security for communication systems. One example includes validating a merchant system using merchant data and generating a set of merchant credentials. The set of merchant credentials is then used in authentication to facilitate a secure transaction, which involves automatically generating transaction data with a tokenized client account number associated with the secure transaction. A refund request associated with the secure transaction is received with the set of merchant credentials that are used for automatically authenticating the merchant system. The example then involves accessing a database that includes the transaction data for automatically facilitating settlement of a refund payment using the authenticated merchant system and the transaction data.