Think your boss is scary? Check out the brutal emails these tech CEOs sent their employees.

Let's start with another one from Zuckerberg. He's had a few.

In 2010, he sent employees an email with the subject line "please resign" after inaccurate information about Facebook's products was leaked to the press.

"I'm asking whoever leaked this to resign immediately," The New York Post reported. "If you believe that it's ever appropriate to leak internal information, you should leave. If you don't resign, we will almost certainly find out who you are anyway."

Elon Musk is a little more straightforward.

As many execs tried to herd their employees back to the office after the COVID-19 pandemic, Musk gave his Tesla workers more direct return-to-office instructions.

"Anyone who wishes to do remote work must be in the office for a minimum (and I mean minimum) of 40 hours a week or depart Tesla. This is less than we ask of factory workers," Musk wrote in an email in 2022, according to CNN. "If you don't show up, we will assume you have resigned."

When Amazon founder and executive chair Jeff Bezos was unhappy with his team, he let a single question mark express his emotions.

He employed the tactic when he got emails from upset customers, he said in 2018.

"I see most of those emails. I see them and I forward them to the executives in charge of the area with a question mark. It's shorthand [for], 'Can you look into this?' 'Why is this happening?'" Bezos said.

Tim Cook, the CEO of Apple, has also taken a sharp tone with employees, leaked emails revealed in 2021.

Cook scolded his employees over email after the contents of an internal meeting leaked to the press, The Verge reported.

"As you know, we do not tolerate disclosures of confidential information," Cook wrote after the incident. "We know that the leakers constitute a small number of people. We also know that people who leak confidential information do not belong here."

While perhaps not as scathing as others, Disney CEO Bob Iger has delivered brutal news to employees via email.

In early 2023, Iger announced to his staff via email that the company was eliminating 7,000 jobs, telling employees that they would be notified if they were being shown the door "over the next four days."

He added that additional layoffs of "several thousand more staff" would happen in the following months.

Rough.

Amazon CEO Andy Jassy gave strict instructions to his employees about returning to the office, putting them on notice that their job security was at stake.

"It's past the time to disagree and commit," he said in 2023. "And if you can't disagree and commit, I also understand that, but it's probably not going to work out for you at Amazon because we are going back to the office at least three days a week, and it's not right for all of our teammates to be in three days a week and for people to refuse to do so."