Joint study [techzoom.net] by Google Switzerland and the ETH (Swiss Federal Institute of Technology) in Zurich concludes that, if an update requires too much user interaction or effort, users will either abort the process or fail even to run it. The Adrozek ad-injecting browser modifier malware also extracts device data and steals credentials, making it an even more dangerous threat. Read the full story [h-online.com] by HSRP and ETH.
Source: https://threatpost.com/study-silent-browser-patches-enhance-security-050509/72622/