Have used Norton security products for years and have never had such a problem. Twice my Chrome browser has been infected and highjacked by search.conduit.com >> constant re-interjection of ads and home page preventing use of browser. Up-to-date NIS failed to block both times and running scans didn't identify or remove problem files. Norton program uninstallation tool found no infection. My grandson is IT specialist and was able to use "Go to my PC" and clean my computer manually. Lots of hits in browser about this problem. Why doesn't NIS block/remove this malware?