What is protected configuration in asp.net ? - ablealias/MVC GitHub Wiki

One of the primary places that sensitive information is stored in an ASP.NET application is the Web.config file. To help secure information in configuration files, ASP.NET provides a feature called protected configuration, which enables you to encrypt sensitive information in a configuration file. A configuration file that encrypts the connection string values using protected configuration does not show the connection strings in clear text but instead stores them in encrypted form.