As you can see the staging URL is obfuscated and is (almost) impossible to guess. But what happens if someone gains access to this staging URL? That person might gain access to a version of the application containing critical bugs / security breaches or even information that shouldn't be available just yet.This issue can easily be solved by adding IP address restrictions to your Cloud Service. An example would be that you can only access the application from your home or from your company. And besides securing the staging deployment slot you could use it for other purposes, like restricting access to a WCF service, to the administrative portal of your application, to a Node.js app, ...