According to a recent SEC Filing, Yahoo has spent over $500,000 on security for CEO Marissa Mayer in response to “specific security threats” that she faced in 2015.

According to the filing, threats against Mayer in 2015 forced the company to increase the cost of her security from $26,891 to $544,061. “During 2015 Ms. Mayer faced specific security threats that we believed were credible,” Yahoo said in the filing.

According to Yahoo, SEC regulations require firms to report security costs as a part of their executive compensation packages. However, the tech firm made clear that they don’t view security costs as an employee benefit.“SEC rules require us to report as compensation to the CEO in the Summary Compensation Table,” the filing says. “However the Compensation Committee does not consider this item to be a compensatory

“SEC rules require us to report as compensation to the CEO in the Summary Compensation Table,” the filing says. “However the Compensation Committee does not consider this item to be a compensatory perk and authorized these arrangements for business purposes regardless of any value they may have to Ms. Mayer personally.”

In comparison, Facebook spends $6.5 million annually on security for CEO Mark Zuckerberg, and Apple spends $275,000 annually on security for CEO Tim Cook.

Tom Ciccotta writes about Free Speech and Intellectual Diversity for Breitbart. You can follow him on Twitter @tciccotta or on Facebook. You can email him at tciccotta@breitbart.com