When Google bought the advertising network DoubleClick in 2007, Google founder Sergey Brin said that privacy would be the company’s “number one priority when we contemplate new kinds of advertising products.”
And, for nearly a decade, Google did in fact keep DoubleClick’s massive database of web-browsing records separate by default from the names and other personally identifiable information Google has collected from Gmail and its other login accounts.
The change is enabled by default for new Google accounts. Existing users were prompted to opt-in to the change this summer.
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 the keywords they used in their Gmail. 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.
The move is a sea change for Google and a further blow to the online ad industry’s longstanding contention that web tracking is mostly anonymous. In recent years, Facebook, offline data brokers and others have increasingly sought to combine their troves of web tracking data with people’s real names. But until this summer, Google held the line.
“The fact that DoubleClick data wasn’t being regularly connected to personally identifiable information was a really significant last stand,” said Paul Ohm, faculty director of the Center on Privacy and Technology at Georgetown Law.
“It was a border wall between being watched everywhere and maintaining a tiny semblance of privacy,” he said. “That wall has just fallen.”
“We updated our ads system, and the associated user controls, to match the way people use Google today: across many different devices,” Faville wrote. She added that the change “is 100% optional–if users do not opt-in to these changes, their Google experience will remain unchanged.” (Read Google’s entire statement.)
Existing Google users were prompted to opt-into the new tracking this summer through a request with titles such as “Some new features for your Google account.”
The “new features” received little scrutiny at the time. Wired wrote that it “gives you more granular control over how ads work across devices.” In a personal tech column, the New York Times also described the change as “new controls for the types of advertisements you see around the web.”
Connecting web browsing habits to personally identifiable information has long been controversial.
Read more here: www.propublica.org/article/google-has-quietly-dropped-ban-on-personally-identifiable-web-tracking