It is also true that data is not ecrypted unless your users are browsing web pages via https. Our registration and payment pages are usign secure servers, so don’t worry, user’s privacy is safe.
It’s also possible to set up an additional encryption however we don’t recommend it because your users will not able to sign up for the service without knowing the security key. They won’t even able to access your HotSpot start page because they need to enter the security key when they are trying to join your Wi-Fi network. If you really want to do this you need to use WEP encryption.