http://blogs.technet.com/ccaitpro/archive/2009/06/29/ie8-el-navegador-m-s-seguro.aspxLo dicen terceros: NSS Labs: Microsoft Internet Explorer 8 was the standout in our tests, achieving a best-in-class 69% catch rate against Malware. Computerworld : According to NSS Labs, which conducted the Microsoft-sponsored study, IE8 blocked 69% ofenCommunityServer 2.1 SP1 (Build: 61025.2)