What is FileVault Disk Encryption?
If your organization uses a Mac, you’ve probably heard of FileVault. But what is it, exactly? And more importantly, do you actually need it? A lost Mac can become much more than an expensive replacement if you have sensitive business data in it. FileVault is one of the simplest ways to protect it. Apple provides it by default with macOS. It encrypts your startup disk, so your files stay unreadable if someone gets access to your Mac without your login.