hellwig
Distinguished
Ok, but HOW did it get those sites, and HOW does it know those sites are in any way dangerous? It certainly didn't employ people to open up their Spam boxes and copy and paste links in there. There has to be some sort of method to determine that the site is truly malicious. After all, just because something is advertised via spam, doesn't mean the site is in any way harmful. My guess is, they got this list from some security firm, and I'm also going to guess that Microsoft uses the same firm for determining their own blacklist.NSS said it used about 650 sites as test sample, which it collected via spam emails, instant messages social networks and its own honeypots.
Basically, the NSS used a blacklist to collect a list of malicious websites, then tested those sites against the other companies' blacklists. Microsoft's latest happened to match 100%, good for them. I bet if they had picked 650 sites from Opera's blacklist, Opera would have passed 100%, same with Chrome, Firefox, and Safari.
What the NSS NEEDS to do is create websites with certain vulnerabilities and check to see if the browsers can detect them. Throwing a very small subset of known bad sites ata browser doesn't prove much, except which browser makers consult with which security firms.
And before you claim I didn't read the article, I read the linked PDF file. Firefox, Opera, Chrome, Safari, and IE8 web browsers blocked sites based purely on "URL Reputation" (i.e. a blacklist). IE9 blocked 92% of websites based on URL Reputation. It blocked another 8% based on "Application Reputation", which they don't even bother to elaborate on, but basically means Microsoft is keeping track of every file everyone downloads, and whether or not that file might be infected (probably tied to their own antivirus software).
So yeah, your browser can be safer, assuming everything you do is tracked by the browser manufacturer (including which files you download), and that those same files are later scanned by that manufacturers antivirus software. Makes me wonder why Chrome isn't more secure (from a blacklist perspective). Makes sense why Safari, Opera and Firefox aren't so secure.