In an amended filing with the SEC on Wednesday, Facebook reported that it spends about $5 million a year on security for Zuckerberg at work and also at his homes.
His security effort, which includes personnel along with equipment installation and maintenance, cost the company about $12 million between 2013 and 2015.
While that might sound like a lot, it's a smart investment, said Patrick Moorhead, an analyst with Moor Insights & Strategy.
"Zuckerberg, right now, is inextricably linked to the success of Facebook," Moorhead said. "If anything were to happen to him right now, the stock would plummet in the billions of dollars. Every cent paid for his security is a good expenditure."
Kagan noted that with a recent threat from the terrorist group ISIS, it makes even more sense to focus on keeping Zuckerberg safe.
"The more powerful Facebook grows, the more of a target they are for the terror community," added Kagan. "So I expect to see them continuing to improve the security around the company and the senior executives."
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