Google announced they are now making efforts to "aggressively targeting hacked spam in order to protect users and webmasters." This means that a new algorithm is being released that will alter about 5% of all queries on Google, reducing the amount of web sites that have been hacked from showing in the search results.
Google said, "the algorithmic changes will eventually impact roughly 5% of queries, depending on the language." As it rolls out, "users might notice that for certain queries, only the most relevant results are shown, reducing the number of results shown," Google said.
So instead of ten results, you might get eight or five. Google shared this picture:
The result reduction might be more extreme at first but Google says it "should improve in the near future" and hacked sites will also be rare to see. Google will continue to refine the algorithm to make it better.
So I guess sites that show the malware or hacked sites warning from 2010, will no longer show up in the search results? This is what Google means by targeting the hacked spam sites more "aggressively."
5% of queries is pretty big.
Even Matt Cutts, the former head of spam at Google, came out of retirement for just a moment, to post the news on Twitter:
Google is launching some improvements for hacked sites: http://t.co/JtzmnjC8yU
(yay!)
— Matt Cutts (@mattcutts) October 6, 2015