Shopp currently doesn’t redirect you to any SSL/HTTPS pages during any part of the checkout process. Technically, if you are using a 3rd party payment provider, it doesn’t need to, but I’d like customers name/address data to be encrypted and secure.
So we need to force SSL on specific pages.Download the WPSSL (WordPress with SSL) plugin
Download and install the plugin.
Now edit your Shopp / Checkout / Cart / My account pages and add a custom field falled “force_ssl” with a value of “true”.