Hi Matt,
Google expanded secure search to include Paid Search as well in April of 2014.
Google Official Announcement:
http://googleadsdeveloper.blogspot.com/2014/04/security-enhancements-for-search-users.html
via Brent Dykes blog post on Adobe Analytics impact:
http://blogs.adobe.com/digitalmarketing/analytics/say-goodbye-paid-search-terms-google/
"Regardless of whether you believe Google’s decision was really about providing more secure search to its users or a savvy business move to expand its AdWords business, it will impact your Adobe Analytics data in the following ways:
- An increase in Keywords Unavailable in both Search Keywords reports (All and Paid).
- Paid Search Keywords report will only feature keywords from other search engines that still provide paid keywords such as Bing.
- Segmentation and breakdowns by paid search keywords will be less effective as they only represent non-Google search traffic.
- In the Marketing Channels reports, the details breakdown for the Paid Search channel will be less useful due to having a greatly reduced amount of keyword data."
Best,
Brian