<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Store:etc/config.xsd">
    <default>
        <ctsg>
            <fct>
                <id backend_model="Magento\Config\Model\Config\Backend\Encrypted" />
                <password backend_model="Magento\Config\Model\Config\Backend\Encrypted" />
            </fct>
        </ctsg>
    </default>
</config>
