Windows Authentication with XLCubed Web Edition
The default and most common method, Windows Authentication (also known as Integrated Authentication) would be used in most organisations as the authentication, and therefore access, is controlled through the same mechanisms as other network resources.
The client's current credentials will be passed to the server and will be used when connecting to the datasource. If the database server is on a different server then they will only receive the credentials if Kerberos Delegation has been configured. (Kerberos will need to be set up and configured by a domain administrator. Most large organisations will have an existing process for doing this - the previous article contains all the information required.)