I keep getting asked by clients, “Why does most of my keyword data in Google Analytics show as (not provided)? It’s like, 66% of all my organic visitors!!”
Basically this all happened back in September/October of 2013. What happened is either a) Google got upset with the NSA and their sneaky backdoor hacking and decided to encrypt all their data, or if your cynical, b) it’s a move by Google to encourage more paid search advertising.
So you won’t be able to see all that glorious data in Analytics any longer.
As a weak alternative you can link your Webmaster Tools account to Analytics to get some of that data – just not with all the great extra data like – what they did after they arrived on the website.
Find more details here: http://searchengineland.com/post-prism-google-secure-searches-172487