Have you ever wanted to try out a new app, or open a file you weren't fully sure about, but felt nervous doing it on your main computer? What if it's broken, or worse, causes a mess you have to clean up? That's exactly the worry this new feature is designed to remove.

What is a "sandbox," anyway?

In computing, a sandbox is simply a separate, temporary space where you can try things out safely. Think of it like a rented test kitchen: you can cook, make a mess, and try new recipes, and when you're done, you just walk away. Nothing you do in there affects your own kitchen at home.

A "virtual machine" (VM for short) is how you create that separate space on a computer. It behaves like a whole separate computer running inside your real one, with its own operating system and its own storage. You can turn it on, use it, and throw it away without ever touching your actual machine.

Introducing the feature: disposable macOS sandboxes