TO KEEP Mark Zuckerberg safe, Meta has spent at least $23m annually on bodyguards, home security and other support during the last three years. To protect Warren Buffett, another high-profile billionaire, but a famously frugal one, Berkshire Hathaway laid out just over $300,000 in 2023. In between those budgets, boards at America’s large public companies make diverse investments to protect bosses, according to filings to the Securities and Exchange Commission. The range of spending indicates a lack of C-suite consensus about what is necessary.