To limit the possibility of a man-in-the-middle attack during the checkout process, certificate pinning can be configured for the Afterpay portal. Please refer to the Android Network Security Configuration documentation for more information.

Add the following configuration to your res/xml/network_security_configuration.xml to enforce certificate pinning for the Afterpay portal.

<?xml version="1.0" encoding="utf-8"?>
<network-security-config xmlns:tools="">
    <domain-config cleartextTrafficPermitted="false">
        <pin-set expiration="2022-05-25">
            <pin digest="SHA-256">nQ1Tu17lpJ/Hsr3545eCkig+X9ZPcxRQoe5WMSyyqJI=</pin>

It is necessary to keep the certificate pins updated to ensure pinning will not be bypassed beyond the expiry date of the certificate.