Abstract: Disclosed are various embodiments for securing transactions with single-use account tokens. In one embodiment, an authorization system creates a single-use account token for a valid primary account identifier. The single-use account token is sent as an email attachment to an email address of an associate account holder. A user device is configured to load the single-use account token from the email attachment into a wallet application of the user device. The valid primary account identifier is prevented from being used by the authorization system to authorize a transaction in response to the single-use account token being created.

Abstract: The system protects an account through the use of tokens, thereby eliminating the need to expose the primary account identifier during a transaction. If a primary account identifier is compromised, any use of the primary account identifier to facilitate a fraudulent purchase or settlement transaction may be blocked by the system. The system is configured to receive a payment authorization request including a payment account first identifier. The payment account first identifier serves as a search condition for a query, which is executed against a database to retrieve payment account information, if the payment account information exists. The system sends a decline response in response to the payment account first identifier and a primary account identifier from the payment account information being the same, indicating that a primary account is being used.

Abstract: The system protects an account through the use of tokens, thereby eliminating the need to expose the primary account identifier during a transaction. If a primary account identifier is compromised, any use of the primary account identifier to facilitate a fraudulent purchase or settlement transaction may be blocked by the system. The system is configured to receive a payment authorization request including a payment account first identifier. The payment account first identifier serves as a search condition for a query, which is executed against a database to retrieve payment account information, if the payment account information exists. The system sends a decline response in response to the payment account first identifier and a primary account identifier from the payment account information being the same, indicating that a primary account is being used.

Abstract: Limited use account identifiers or secondary account identifiers are enabled with refresh capability. The refreshable account identifiers are used in financial transactions and, specifically, in transaction situations where multiple and/or duplicate authorization requests occur for the same or related transactions. The limited use account identifiers may be used by intermediaries that coordinate the purchase of an item for a buyer. An authorization refresh may be performed by the account issuer and/or the intermediary if a settlement request is received for a transaction.

Abstract: Limited use account identifiers or secondary account identifiers are enabled with refresh capability. The refreshable account identifiers are used in financial transactions and, specifically, in transaction situations where multiple and/or duplicate authorization requests are submitted by a merchant for the same or related transactions. The limited use account identifiers may be used by intermediaries that coordinate the purchase of an item for a merchant/buyer. An authorization refresh may be performed by the account issuer and/or the intermediary if a settlement request is received for a transaction.

Abstract: Limited use account identifiers or secondary account identifiers are enabled with refresh capability. The refreshable account identifiers are used in financial transactions and, specifically, in transaction situations where multiple and/or duplicate authorization requests occur for the same or related transactions. An authorization refresh may occur if a settlement request is received for a transaction. The limited use account identifiers may be used by intermediaries that coordinate the purchase of an item for a buyer.

Abstract: Limited use account identifiers or secondary account identifiers are enabled with refresh capability. The refreshable account identifiers are used in financial transactions and, specifically, in transaction situations where multiple and/or duplicate authorization requests occur for the same or related transactions. The limited use account identifiers may be used by intermediaries that coordinate the purchase of an item for a buyer. The intermediary also coordinates with the merchant to verify availability of the item, provides the merchant with the refreshable limited use account identifier and provides the purchaser with a confirmation number.