Has anyone else seen increases to the Bounce Rate to the Homepage from IE9 traffic? Looks like the traffic is attributed to NonSourced / Bookmark and started in early January. From my view, this traffic is coming from multiple domains - Comcast, RR, sbcglobal etc.... and it appears that its not a dedicated bot or scraper.
I researched this and found this link from GA users who are seeing this issue - https://productforums.google.com/forum/#!topic/analytics/sTinRFgimIU
Thanks a lot for reaching out.
There could be multiple factors causing the sudden increase and drops in data.
Please see the below article and see if it helps: