In an email sent to all full-time employees worldwide and provided to 9news.com.au, the company announced there would be cutbacks.

"By 9am PST on Friday November 4th (1am Saturday morning AEDT), everyone will receive an individual email with the subject line: Your Role at Twitter," the email announcement reads.

"Please check your email, including your spam folder."

The email sent earlier today said all offices would be temporarily closed and access suspended "to help ensure the safety of each employee as well as Twitter systems and customer data".

"If you are in an office or on your way to an office, please return home."

The email was signed simply as "Twitter".

The email comes at a tumultuous time for the social media giant.

It was reported last week Musk intends to sack three-quarters of the company's 7500 workers, leaving just a skeleton crew.

"Twitter's current lords & peasants system for who has or doesn't have a blue checkmark is bulls—," Musk tweeted on Wednesday.

The proposition has been treated with revulsion by most of Twitter's users.

"If that gets instituted, I'm gone like Enron."

Earlier this week Musk changed his title on Twitter to "Twitter Complaint Hotline Operator" and his location to "Hell".