The changes are not ground-breaking, but do appear to be  	able to keep Norton on top of its game. The Chrome support is a long-request  	feature for the world’s third-most popular browser, and extends Norton Safe  	Web toolbar features such as search result evaluation, link scanning, and  	Norton’s ID Safe to Chrome users.
  	The two engine changes in the Norton 2012 betas aren’t  	exposed in any new interface modules, yet they are important. Insight 3.0,  	and its component Download Insight 2.0 feature, have been improved. As  	mentioned above, Download Insight now looks at downloaded files for security  	and stability. It won’t stop you from downloading a file that’s known to  	cause instability, but it will warn you and provide an option to stop the  	download.
  	This is a fairly well-designed feature, and can tell the  	difference between operating systems. This means that if a file is known to  	be stable on Windows 7 but unstable on Windows XP, only Windows XP users  	will see the warning.
  	 		Norton Internet Security 2012 beta offers more nuanced  		download ratings, and will warn you when a download is known to cause  		system instability. (Credit: Screenshot by Seth Rosenblatt/CNET)
   	Meanwhile, improvements in SONAR 4.0 include upgraded  	behavioral protection, which monitors running programs for suspicious  	behavior and will stop them if it detects any. One of the bigger changes in  	SONAR is that it now scores DLL file separately, allowing for more nuanced  	detection.
  	There have been some interface tweaks in the betas, adding  	bright green to a formerly yellow-and-black interface. While not a major  	redesign, the green does serve to better highlight key features, such as  	your security status. Norton’s online storage vault also catches up to the  	competition this year, integrating a cloud sync feature, and the Norton  	Power Eraser for last-ditch fixes has been integrated with the Norton  	bootable recovery tool, so you won’t have to download them separately