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Secure input of sensitive information

Hosted Fields

Hosted Fields is a solution that lets merchants offer Afterpay at checkout without collecting sensitive information themselves.

The solution involves a special text entry box (or any other standard HTML data entry field) that collects data directly to AfterPay’s servers, from within the merchant’s website/app. The merchant receives only a proprietary unique ID (nonce). This can be used to identify the customer in calls to the AfterPay eCommerce API, but not to resolve the customer’s Personally Identifiable Information. This allows the merchant to avoid the obligations and risks that stem from handling sensitive data.

The solution creates a text entry box in the merchant’s website / app that is an iFrame to AfterPay’s servers. Any data entered into this field by the customer is visible only to AfterPay’s servers, and not to the merchant. The fields are displayed by the merchant’s website/app, but hosted by AfterPay’s servers.

Nonce

Hosted Fields are designed to collect the customer’s Personally Identifiable Information (name, email, national ID number, address, etc.).

The merchant wants to minimize the amount of PII handled by their systems. However, this information is required by AfterPay for its credit/risk checks and to positively identify the customer for invoicing.

The merchant’s customer signup (or checkout) includes a transparently embedded iFrame of a text entry box (or other HTML entry field). The iFrame is hosted on AfterPay’s Hosted Fields Server. When the customer submits the form, the contents of the Hosted Field are sent directly from the customer’s device to AfterPay’s server, and never pass through the merchant’s systems.

Instead, the merchant receives a nonce – a unique string that can be used as a replacement for the customer’s PII in the Authorize call to the AfterPay eCommerce API. The eCommerce API takes the nonce and sends it to the Hosted Fields Server, which provides the original data in response, all over a secure backend connection.

You can use multiple Hosted Fields in one webform. If they are all part of a single Authorize call, the merchant will receive a single nonce in return, and all the collected data will be associated with that nonce.

Integration

The solution includes the following components on AfterPay’s end:

ID Service:

Hosted Fields Server:

The nonce can be used for subsequent AfterPay eCommerce API calls, as part of the Checkout Customer block. If the nonce is provided, the identificationNumber is optional.

The nonce can be used only with the same merchant API key as the one that was used to generate it. Otherwise, the eCommerce API will reject the call.

The nonce can be used only for a single Authorize call. Each checkout must be conducted with a new nonce.