Security in SharePoint Apps

Dear Friends,

Below are the blogs where Security in SharePoint Apps is covered nicely by Steve.

http://blogs.technet.com/b/speschka/archive/2013/07/29/security-in-sharepoint-apps-part-1.aspx
http://blogs.technet.com/b/speschka/archive/2013/07/29/security-in-sharepoint-apps-part-2.aspx
http://blogs.technet.com/b/speschka/archive/2013/07/29/security-in-sharepoint-apps-part-3.aspx
http://blogs.technet.com/b/speschka/archive/2013/07/30/security-in-sharepoint-apps-part-4.aspx

Thanks, Prabhat