Lodi News-Sentinel

Exploiting data a feature of Facebook

- By David Pierson

With each comment, like and share, users provide Facebook with a deeply personal window into their lives.

The result of that voluntary behavior? Advertiser­s looking to finely target their pitches can glean someone’s hobbies, what they like to eat and even what makes them happy or sad — propelling Facebook’s ad revenue to $40 billion last year.

This trove of rich informatio­n is now at the center of a rapidly growing controvers­y involving one of President Trump’s campaign consultant­s, Cambridge Analytica, which reportedly took the advertisin­g playbook and exploited it in a bid to influence swing voters.

Former employees accuse the firm, owned by the conservati­ve billionair­e Robert Mercer and previously headed by Trump’s former chief strategist Steve Bannon, of taking advantage of ill-gotten data belonging to millions of unwitting Facebook users. News of the breach was met with calls over the weekend for stricter scrutiny of the company.

Sen. Amy Klobuchar, DMinn., demanded that Mark Zuckerberg, Facebook’s chief executive, appear before the Senate Judiciary Committee. Maura Healey, attorney general for Massachuse­tts, said her office was launching an investigat­ion. And the head of a British parliament­ary inquiry into fake news called on Facebook to testify before his panel again, this time with Zuckerberg.

The accusation­s raise tough questions about Facebook’s ability to protect user informatio­n at a time when it’s already embroiled in a scandal over Russian meddling during the 2016 presidenti­al campaign and under pressure to adhere to new European Union privacy rules.

They also highlight the power and breadth of the data Facebook holds over its 2 billion users. Whether used to sway voters or sell more detergent, the informatio­n harvested by the world’s biggest social network is proving to be both vital and exploitabl­e regardless of who’s wielding it.

“The data set assembled on people by Facebook is unrivaled,” said Scott Galloway, a professor of marketing at New York University Stern School of Business and author of “The Four: The Hidden DNA of Amazon, Apple, Facebook and Google.” “The bad news is, people are discoverin­g this can be used as a weapon. The worse news is that people are learning how to detonate it.”

The controvers­y began late Friday when Facebook’s vice president and deputy general counsel, Paul Grewal, announced in a blog post that the social network was suspending Strategic Communicat­ion Laboratori­es and its affiliate, Cambridge Analytica.

Facebook said the companies failed to delete user data they had acquired in 2015 in violation of the platform’s rules. The data were supplied by a University of Cambridge psychology professor, Aleksandr Kogan, who built an app that was supposed to collect details on Facebook users for academic research. Kogan was not supposed to pass that informatio­n to a third party for commercial purposes under Facebook guidelines.

Facebook said the data collection was contained to 270,000 people who downloaded Kogan’s app as well as “limited informatio­n” about their friends.

But a whistleblo­wer and other reported sources contend the scope of the data collection was significan­tly larger. Christophe­r Wylie, a departed co-founder of Cambridge Analytica, said Kogan harvested data from 50 million Facebook users without their permission, largely by mining friends of the people who downloaded his app.

The allegation­s were first reported by the New York Times and the British newspaper the Observer, whose stories about the breach were preempted hours earlier by Facebook’s announceme­nt of the suspension­s.

Wylie, who described Cambridge Analytica as a weapon designed to wage a culture war in the U.S., said Facebook wasn’t particular­ly adamant about censuring his former company. He said the only effort made by the social network was sending a letter in August 2016 demanding that the data Kogan supplied be destroyed. He said Facebook never verified whether the data had been deleted.

Facebook, which also suspended Wylie, did not respond to a request for comment.

As recently as last month, Cambridge Analytica told a British parliament­ary hearing that it never had or used Facebook data. But in a statement Saturday, Cambridge Analytica admitted receiving user informatio­n from Kogan and then deleting it after learning it violated Facebook’s rules. The firm added it never used any of the data for Trump’s 2016 campaign when it was hired as a consultant.

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