Politics

Mark Zuckerberg's security chief is leaving after an investigation into allegations of misconduct

Mark Zuckerberg and Priscilla Chan
Priscilla Chan and Mark Zuckerberg. Manuel Balce Ceneta/AP
Read in app

Mark Zuckerberg's personal security chief is leaving the Facebook CEO's family office after being accused of sexual misconduct and racism — though a representative for the family office has said it has found no evidence to substantiate the allegations.

As Business Insider first reported in May, Liam Booth — the head of security for the 34-year-old billionaire's family office, which handles household affairs as well as the philanthropic Chan Zuckerberg Initiative — has been accused by two former employees of serious misconduct.

In an emailed statement on Monday, Ben LaBolt, a representative for the family office, said internal investigations by the office's human-resources department and its law firm Munger, Tolles & Olson could not substantiate the allegations, but Booth has decided to leave anyway — prompting renewed calls from the accusers' lawyers for an independent investigation.

Here's the full statement from LaBolt:

"Over the course of several weeks, both the family office's HR Department and Munger, Tolles & Olson have conducted separate investigations into the allegations outlined by The Bloom Firm against Liam Booth. These investigations included numerous interviews with Mr. Booth's colleagues as well as a review of other relevant documents and information. Following these thorough investigations, the serious allegations made against Mr. Booth by the Bloom Firm could not be substantiated.

"Mr. Booth knows that minimizing distractions is vital to executing the security duties in this role, so he has decided to move on from the family office to pursue other opportunities. The family office is grateful for his service and wishes Mr. Booth the best in his future endeavors."

The allegations in question, made by the former employees through their lawyers at The Bloom Firm in legal documents reviewed by Business Insider, included accusations of "pervasive discriminatory conduct," "horrific levels of sexual harassment and battery," and of creating an environment in which support staff were repeatedly subjected to homophobic and transphobic diatribes — as well as allegations that Booth made racist remarks about Priscilla Chan, Zuckerberg's wife.

There is no allegation that Zuckerberg was aware of any misconduct.

The two accusers have been demanding compensation for lost wages and damages for emotional distress, and LaBolt declined to comment on the status of the legal proceedings.

In response, The Bloom Firm continued to call for an independent investigation into the allegations. "We continue to urge the family to retain a truly neutral, independent investigator experienced in harassment and discrimination claims to make factual findings and recommendations on these urgent and important claims," Lisa Bloom, the head of the firm, said in an emailed statement.

"As far as we know, no independent investigation has occurred. Instead, a large defense firm is defending against our clients' allegations. Attorneys are ethically bound to defend their clients."

One of the accusers is a former employee of the 34-year-old billionaire's household staff who was responsible for preparing Zuckerberg's various homes for the family's arrival; the other is a former executive assistant to Booth. Both retained the law firm of the California attorney Bloom, whose efforts on the behalf of Bill O'Reilly's accusers in 2017 helped get the TV host fired from Fox News.

Booth previously worked for the US Secret Service from 2001 to 2017, including a five-year stint working to "supervise the physical protection for the President and the first family of the United States" during the Obama years, according to his LinkedIn profile. He had been placed on leave after the allegations were made.

Read more: The attorney representing 2 staffers alleging misconduct by Mark Zuckerberg's security chief is demanding an independent investigation

The legal demand letters also accused Brian Mosteller, the managing director of Zuckerberg's private office who previously served as a special assistant to President Barack Obama, of failing to take action after the two staffers raised complaints. Mosteller remains in his position, LaBolt said.

One of the demand letters alleges that Booth made racist remarks to the household staffer about Chan's driving ability, including that "she's a woman and Asian, and Asians have no peripheral vision," while pulling his eyelids to the side in a racist caricature.

The other letter accuses Booth of making a series of racist remarks to the security staffer. On more than one occasion, the letter alleges, Booth told the staffer that he "didn't trust Black people" and that "white lives matter more than Black lives." The letter also accuses Booth of bragging about deliberately attempting to undermine Chan's diversity goals in hiring and of complaining about the number of black people who worked at the Chan Zuckerberg Initiative. When the security staffer objected to that remark, the letter alleges, Booth "angrily advocat[ed] against diversity in the workplace and the movement Black Lives Matters, which he called 'reverse racism.'"

Business Insider previously reported that a source who had worked around Booth and wished to remain anonymous because the person was not authorized to speak publicly said the person had also heard Booth say "Asians can't drive" and disparage Chan because of her ethnicity.


Do you know more? Contact this reporter via encrypted messaging app Signal at +1 (650) 636-6268 using a non-work phone, email at rprice@bjinnox.com, Telegram or WeChat at robaeprice, or Twitter DM at @robaeprice. (PR pitches by email only, please.) We can keep you anonymous. You can also contact Business Insider securely via SecureDrop.


Read more:

Read next

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.