Meta is trying to stop a former employee from promoting her book about Facebook

Meta has notched an early victory in its attempt to halt a surprise tell-all memoir from a former policy executive . An arbitrator with the social media company, saying that the book’s author should stop selling and publicizing the book, which went on sale earlier this week.

The drama stems from Careless People, a new book by Sarah Wynn-Williams, a former policy official at Facebook who Meta says was fired in 2017. Described by its publisher as an “explosive insider account,” Wynn-Williams reveals some about Mark Zuckerberg’s push to bring Facebook to China a decade ago. She also that Meta’s Joel Kaplan, acted inappropriately, and reveals about Zuckerberg’s awkward encounters with world leaders

The book was only announced last week, and Meta has waged a forceful PR campaign against it, a “new book of old news.” Numerous former employees have Wynn-Williams’ account of events that transpired while she worked at Facebook.

Meta also filed an emergency motion with an arbitrator in an attempt to block the book, arguing that Wynn-Williams had violated a non-disparagement agreement with the company. In a decision, the arbitrator said that she should immediately stop making disparaging comments about Meta and stop “further publishing or distributing” the book. It’s unclear what exactly this means for the book, which is already on sale. The publisher, Flatiron Books, which was also named in Meta’s complaint, didn’t immediately respond to a request for comment.

“This ruling affirms that Sarah Wynn Williams’ false and defamatory book should never have been published,” Meta spokesperson Andy Stone said in . “This urgent legal action was made necessary by Williams, who more than eight years after being terminated by the company, deliberately concealed the existence of her book project and avoided the industry’s standard fact-checking process in order to rush it to shelves after waiting for eight years.”