files that were found on a statistically significant number of computers. Citing a NPD Group study finding that 39 percent of consumers switching antiviruses blamed performance, a CPU usage meter allowed users to find the cause of high CPU usage, whether it be Norton or another program. Updates were more frequent, termed Norton Pulse Updates. Pulse Updates were delivered every five to fifteen minutes (down from every eight hours). Silent Mode automatically suspends alerts and updates when a program enters fullscreen mode and could be manually enabled. Activities took place while the computer was idle, and terminate once user activity was observed. Spam filtering became part of the bundle. This release bundled Norton Safe Web, which identified malicious websites, compatible with Internet Explorer and Firefox. Norton Safe Web color coded search results from search engines such as Google and Yahoo for safety. The Norton Safe Web toolbar included an Ask.com search box. The search box did not share code with the Ask toolbar; instead it redirected queries to the Ask search engine. Benchmarking conducted by PassMark Software highlighted its 52 second install time, 32 second scan time, and 7 MB memory utilization. Symantec funded the benchmark test and provided scripts used to benchmark each participating antivirus software. Tests were conducted in Windows Vista running on a dual core processor. PC Magazine found the suite added 15 seconds to boot time, with a baseline of 60 seconds. Norton added less than 5 percent to the time it takes to complete file operations. 25 percent more time was taken to unzip and zip a set of files. Norton was able to remove most commercial keyloggers, beating other tested products. Norton blocked all attempts to install malware on a clean system. Modifications made to the samples did not fool Norton. Norton was not able to block the installation of all the commercial keyloggers. Phishing protection blocked 90 percent of verified phishing websites in PC Magazine testing. Internet Explorer 7 caught 75 percent, and Firefox caught 60 percent. Norton stealthed all ports, according to PC Magazine. Port scans were unsuccessful. The firewall blocked all exploit attempts by Core Impact. Malware blocking and removal garnered good results in PC Magazine testing. All but one malware sample contained within a folder were removed once the folder was opened. The last one was removed when executed. Modifications made to the samples did not affect detection. On a