In the latest round of testing, NSS Labs looked at:
- Google Chrome 10.0.648.204
- Windows Internet Explorer 8 (build 8.0.7600.16385)
- Windows Internet Explorer 9 (build 9.0.8112.16421)
- Mozilla Firefox 4.0
- Opera 11.01 Build 1190
- Safari 5.0.5(7533.21.1)
NSS Labs revealed in it's final report (pdf) that, "With SmartScreen enabled and Application Reputation disabled, IE9 achieved a unique URL blocking score of 89% and over-time protection rating of 92%. Enabling Application Reputation on top of SmartScreen increased the unique URL block rate of Internet Explorer 9 by 11% (to 100%) at zero hour as well as the over-time protection by 8% (to 100%)."
Here are NSS Labs' conclusions for the additional browser tested:
Firefox 4 achieved a 13% protection rating, on par with protection offered by Chrome and Safari —86% less protection than Internet Explorer 9 and 77% less than Internet Explorer 8. Firefox exhibited deterioration in protection compared with our Q3 2010 global test that can be attributed to either the implementation of Safe Browsing API v2 or new tactics being used by cybercriminals that Safe Browsing has not yet adapted to. There was a slight 1% improvement between zero-hour protection (16%) and eventual protection at the 19 day mark (17%).
Safari 5 achieved a 13% protection rating on par with Firefox and Chrome converging at a roughly 17% block rate after 19 days. However, Safari presented a notable lag in protection vs. Firefox with zero-hour protection of 11% (vs. Firefox’s 16%).
With a protection rating of 13%, Chrome 10 offered nearly identical protection to Safari and Firefox. Browser Security Comparative Test: Socially-Engineered Malware
Opera 10’s overall blocking rate of 5% was consistently the lowest in the group. However, this was an improvement over the 0% scores in our previous global tests, and is likely attributable to the company’s partnership with antivirus firm AVG.
[Source: NSS Labs report, via softpedia]