Yeah everything is explained according to cisco Global Mobile Data Traffic Forecast Update, 2013 from below link with some security info

http://www.cisco.com/c/en/us/solutions/collateral/service-provider/visual-networking-index-vni/white_paper_c11-520862.html?CAMPAIGN=MobileVNI2014&COUNTRY_SITE=us&POSITION=sl&REFERRING_SITE=cisco.com+homepage&CREATIVE=MobileVNI+2014+Cisco.com+