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. While new users were automatically opted-in, existing users were asked if they wanted to opt-in, and it remains possible to opt-out by going to the Activity controls in the My Account page of a Google account. "ProPublica" states that "The practical result of the change is that the DoubleClick ads that follow people around on the web may now be customized to them based on your name and other information Google knows about you. It also means that Google could now, if it wished to, build a complete portrait of a user by name, based on everything they write in email, every website they visit and the searches they conduct." Google contacted "ProPublica" to correct the fact that it doesn't "currently" use Gmail keywords to target web ads.