Blackhat spammers will do almost anything to earn money, including illegal stuff like hacking tons of websites. Google is able to detect and disregard the vast majority of hacked links; you're looking at raw links but you don't see which of those links we trust and how much weight we give them.
We try to go a little further and warn many websites that they've been hacked, but there's definitely a lot of unpatched web servers out there, as you could guess from http://news.ycombinator.com/item?id=3277514 a few hours ago.
We try to go a little further and warn many websites that they've been hacked, but there's definitely a lot of unpatched web servers out there, as you could guess from http://news.ycombinator.com/item?id=3277514 a few hours ago.