Better yet, the encrypted disk image you create can be synchronized online using a service like Dropbox or Google Drive. You don't have to encrypt any entire devices you just have to use a single container file. This is a simple method for encrypting files. When you unmount the disk image, the files will be locked and no one will be able to access them unless they have your encryption password. The files will be available to use and any files you save to the disk image will be encrypted. Whenever you want to work with your encrypted files just mount the disk image and enter your password. You can encrypt individual files by creating an encrypted file container, or disk image. Related: How to Create an Encrypted Disk Image to Securely Store Sensitive Files on a Mac Your drive will be locked again when you shut down your Mac. When you turn on your Mac, you'll have to sign in with one of those user accounts before your drive is unlocked. You can choose which user accounts have the ability to unlock your disk. (Without FileVault enabled, anyone with physical access to your Mac could remove its hard drive and view your files, because they're stored in an unencrypted form.) Someone who gains access to your Mac, removes your hard drive, and attempts to view your files won't be able to see anything without your encryption key. When you enable FileVault, your files are stored on your hard drive in an encrypted, seemingly scrambled format. The FileVault feature allows you to encrypt your Mac's entire hard disk. Related: What Is Encryption, and How Does It Work? Mac users don't need to think about it: if you have a Mac, you have access to powerful encryption. It's a better situation than Windows 10, where full disk encryption is only offered on some PCs, and partial encryption depends on third party tools.
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