Crystal Reports and salesforce integration question

I have a question about Crystal Reports connectivity to salesforce.  We are running Crystal Reports version 14.0.4.738 RTM.  When you create a new report and use the Database Expert, you can select www.salesforce.com as the data source.  I would like to know if the built-in connection to salesforce is secure.  Is our data secure in transit from salesforce to Crystal?  Is my password passed in clear text?  That kind of thing...

Thanks!

Message was edited by: Ludek Uher