Tech

Facebook fought to keep a trove of thousands of explosive internal documents and emails secret. They were just published online in full.

facebook ceo mark zuckerberg
Facebook CEO Mark Zuckerberg at a House Financial Services Committee hearing in October. AP Photo/Andrew Harnik
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An explosive trove of nearly 4,000 pages of confidential internal Facebook documents has been made public, shedding unprecedented light on the inner workings of the Silicon Valley social-networking giant.

On Wednesday, the investigative reporter Duncan Campbell released a vast swathe of internal emails, reports, and other sensitive documents from the early 2010s that detail Facebook's internal approach to privacy and how it worked with app developers and handled their access to user data.

The documents were originally compiled as part of a lawsuit that the startup Six4Three brought against Facebook for cutting off its bikini-photo app's access to the developer platform. The documents were supposed to remain under seal — but they were leaked.

Some of the documents had already been made public before Wednesday. The British Parliament's Digital, Culture, Media, and Sport Committee published hundreds of pages in a report in December; they were seized from Six4Three's founder, Ted Kramer, when he visited the UK.

And in the months before he put the entire trove of documents into the public domain, Campbell shared them with journalists at NBC News and other outlets, who then published several stories about them. (Campbell said that he was sent the documents in February, the same day that the committee published its final report, and that the sender was anonymous.)

Facebook has fought vigorously against the release of the documents, arguing that they do not paint a balanced picture of its activities. In an emailed statement, a company representative told Business Insider: "These old documents have been taken out of context by someone with an agenda against Facebook, and have been distributed publicly with a total disregard for US law."

Business Insider is combing through the documents and will update this story with our findings.

Here are some of the key revelations from the document dump, including from reports published from earlier leaks:

The leak includes nearly 4,000 pages of internal Facebook documents, nearly 3,000 pages of other exhibits from the case, and hundreds of pages of other pieces of legal documentation.

This story is developing...

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Rob Price was a senior correspondent at Business Insider, based in San Francisco. He wrote investigations and long-form features about platforms, people, and power in Silicon Valley.His stories variously led to attorney general investigations, large-scale internal reviews at major tech companies, high-profile personnel departures, citation by state and federal lawmakers, and the closure of a well-funded startup. His 2022 story on the Bitfinex hack is being adapted into a feature film, and in 2024 he received an SPJ NorCal Excellence in Journalism award for his reporting on AI and relationships.Rob's scoops and exclusive stories were cited by The New York Times, Bloomberg, the BBC, Associated Press, Reuters, CNBC, Politico, The Guardian, Axios, and many other national and international publications. His writing has also been published in or syndicated by The Washington Post, The Independent, Vice, Slate, and elsewhere, and he appeared on CNN, the BBC, CBS, Reuters, ABC Australia, and other broadcast media to discuss technology, business, and culture.He worked for Business Insider from 2015 to 2025. Prior to joining the features team, Rob covered Facebook and Silicon Valley, and before that wrote about tech business, policy, and the gig economy in London. Between September and October 2019, he was acting executive editor for Business Insider's UK bureau. He also sat on the board of directors for the San Francisco Press Club, the leading non-profit media advocacy group in the Bay Area, and was a volunteer crew member at the Marine Mammal Center, the world's largest animal hospital for marine mammals. You can contact Rob Price via email at robaeprice@gmail.com, or +1 650-636-6268 (Signal / WhatsApp / Cell). Selected stories:— They spoke out against their employer. Then they were hit with trade secrets suits. The rise of 'shadow stand-ins'App, Lover, Muse: Inside a 47-year-old Minnesota man's three-year relationship with an AI chatbotDeel Speed: The inside story of a $12 billion HR startup's breakneck growthPrivate islands, flying cars, and psychedelic parties: Inside the wild post-Google lives of Larry Page and Sergey Brin'I want your Instagram account': First came the threatening texts, followed by the SWAT teams. Then someone wound up dead.Inside Iconiq: How Mark Zuckerberg's banker built a secret Silicon Valley empire and made billionsGaia was a wildly popular yoga brand. Now it's a publicly traded Netflix rival pushing conspiracy theories while employees fear the CEO is invading their dreamsA drunken late-night assault allegation has roiled the secretive world of Mark Zuckerberg's private family office. Personal aides are speaking out about claims that household staff endured sexual harassment and racism from their colleagues.