https://www.cnbc.com/2018/04/13/facebook-proxy-says-it-spent-almost-9-million-on-zuckerberg-security.html

Facebook CEO Mark Zuckerberg only made a salary of $1 in 2017, but his company spent close to $9 million for his personal security and use of private jets.

According to a proxy statement released on Friday, Zuckerberg's "other compensation" jumped 53 percent last year from 2016 to $8.9 million. That figure includes $7.3 million for security at his home and during travel and $1.5 million "for costs related to personal usage of private aircraft."