Earlier this month, Apple filed a proxy statement with the SEC in which it was revealed the company spent $310,000 on personal security for Tim Cook in 2018. Now, Wired is out with a closer look at how Apple’s spending on personal security for Cook compares to other Silicon Valley CEO.

Intel spent a whopping $1.2 million to protect its former CEO Brian Krzanich in 2017. Most notably, however, Facebook CEO Mark Zuckerberg cost the company $7.3 million in 2017, with that number expected to rise to at least $10 million in 2018. That’s up dramatically from the $2.3 million spent in 2013, but it shouldn’t come as a surprise:

For Tim Cook specifically, the cost of his personal security in 2018 was actually down substantially compared to 2015, when Apple spent $700,000 on Cook’s security. 2016 saw that number fall to $220,000, while in 2017 Apple spent $224,000.

“I’d put that $10 million among the top five highest in the country. And from what I’ve read in the media about Facebook, that seems to be an appropriate level of expense,” says Heintze.