As per the recent posts on Apple Support page, dated October 25, 2021, Apple has released a new update for macOS Monterey and macOS Big Sur that includes important new security fixes. The new update includes security patches that correct issues which allow malicious actors to execute unauthorized code on your computer, or malicious applications and websites to get private information from your computer.

We advise you update your macOS computer at home and at work, (campus and personal) before you use them.

For information on how to update macOS on your Mac see the Apple Support page, Update macOS on your Mac.