In the summer of 2016, Google quietly dropped its ban on personally identifiable info in its DoubleClick ad service. Google's privacy policy was changed to state it "may" combine web-browsing records obtained through DoubleClick with what the company learns from the use of other Google services.
In the summer of 2016, Google lifted its restriction on personally identifiable data in its DoubleClick ad service. Google's privacy policy was revised to imply that it "could" combine web-browsing data obtained through DoubleClick with insights gathered from using other Google services.