Just started having this issue, every time I close my Chrome browser, N360 instantly uses 50% of my CPU.
As soon as I open Chrome back up again, Norton stops. So it appears I need to have Chrome open all the time??
When N360 is using that CPU power, it can last 30 seconds, to even 5 minutes or more and it really takes a toll when I'm trying to run other things.
Tried reinstalling Chrome, deleted all of my browser history,cache, etc. Did a maleware scan using MalewareBytes and HitmanPro, no results, so something is going on that Norton doesn't like about Chrome.