Meta whistleblower Sarah Wynn-Williams is suing the tech company over efforts to “silence” her.
57 pages Complaint The lawsuit, filed Thursday in U.S. District Court in California, argues that the interim arbitration ruling by Meta to block Wynn-Williams from promoting her memoir, Careless People, was “unfair and unlawful” and a “clear violation of the First Amendment.” It also accuses the company of “coercive surveillance”.
Wynn-Williams, who served as director of global public policy at Facebook between 2011 and 2017, published a memoir of her time at the company in March 2025. The book included allegations of a toxic internal culture, including sexual harassment and gender-based discriminatory practices. The company described the book as “a mixture of old and previously reported claims about the company and false allegations about our executives.”
Upon publication, Meta sought an emergency order preventing Wynn-Williams from promoting the book, on the grounds that she had signed a severance agreement that included arbitration and non-disparagement clauses.
Thursday’s complaint, with 285 pages Announcement Wynn-Williams argues that the severance agreement is unenforceable in part because it was signed under financial duress. It said that when Facebook fired Wynn-Williams in August 2017, the company knew that her dismissal would take away “crucial employment benefits” – described as “the cornerstone of its financial stability” – meaning it had “no choice” but to accept the severance agreement, which would have allowed her to retain many benefits and receive a significant cash payout.
In late May, Wynn-Williams appeared at the Hay literary festival in Wales with journalist Carol Cadwalader and academic Tim Wu, but did not speak on legal advice. Despite this, Meta wrote to the eligibility arbitrator on June 12 requesting that he impose additional sanctions based on his appearance, the complaint shows.
According to META’s arbitration submissions, its representatives attended Wynn-Williams’ public appearances, “collected photographs and written records of her movements, and traveled the length of the United Kingdom to do so – including a lengthy trip to rural Wales for the Hay Festival – all to document that at each event, Ms Wynn-Williams said nothing about META or her book”, the complaint states. The company has also asked the arbitration arbitrator to force Wynn-Williams to disclose a list of her planned public appearances, it continues.
Following Wynn-Williams’ Hay appearance, sales of her book increased 304.5% week over week. According to Pan Macmillan, Careless People has sold over 150,000 copies in all formats in the UK since publication.
The complaint claims Meta is “stalking” Wynn-Williams “not only because she refused to bow to the greed and power of Meta, Mr. Zuckerberg, and other executives, but also to strike fear in the heart of anyone else who would dare consider speaking the truth about Meta’s unlawful and abusive practices in the public interest”.
In a statement, Meta said: “This former employee is trying to use the legal process to sell the books after an arbitrator had already ruled that he broke the agreement he had with the company when he accepted a large financial settlement years ago.”
Mike Harpley, Macmillan’s nonfiction publisher and Wynn-Williams’ UK editor, said the filing described “how Meta has enforced its legal order against Sarah Wynn-Williams with an appalling campaign of surveillance. Reckless people raise important issues for society and Meta’s actions prevent essential public conversations in the UK and beyond.”
Ravi Naik, legal director of AWO Legal and UK lawyer for Wynn-Williams, said that Meta had used a private mediator to “silence” the whistleblower. “No judge, no hearing and no finding that he said anything wrong. Just a secret proceeding between an arbitrator and one of the most powerful corporations in the world.”
He said of Thursday’s complaint: “This is the first time that Sara has been able to explain to the world what happened to her. The court filings set out the facts of what happened to Sara and expose the lengths to which Meta went to silence her.”
