NSS Labs research report shows that Internet Explorer 9 Beta protects the user from 99% of socially-engineered malware downloads.
According to NSS Labs, "With a unique URL blocking score of 94% and over-time protection rating of 99%, Internet Explorer 9 was by far the best at protecting users against socially-engineered malware."
The following graph compares the protection offered by various browsers against socially engineered malware attacks:
To date, IE8 and IE9 Beta have blocked 1.3 billion phishing and malware attacks and continue to block millions of attacks every day. We are committed to continually improving our intelligence systems and processes so we can continue to provide industry-leading protection from phishing and malware.