To help you better identify the signed in user organic
search visits, we created the token “(not provided)”
within Organic Search Traffic Keyword reporting. You
will continue to see referrals without any change; only
the queries for signed in user visits will be affected.
Note that “cpc” paid search data is not affected.
This will make it much more difficult to measure organic search marketing efforts, but for Google, this should encourage more investment in paid marketing campaigns to measure keyword effectiveness.