How to Enable Full Disk Encryption on macOS | #macos | #macsecurity


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As a business owner, one of the critical things you must never compromise is data security. Sensitive information must be adequately protected to avoid the costs of a data breach and mitigate risk. If you are a macOS user, how do you protect your system and ensure data privacy? Although there are several ways to achieve seamless data protection on macOS, full disk encryption is a powerful and highly efficient method.

In this tutorial, we will take you through the process of encrypting your disk.

What Is Full Disk Encryption?

Full disk encryption (FDE) is a cryptographic method that converts all the data on a disk to unreadable code. Such code can only be read by someone with the decryption key. For example, to protect your home, an efficient way is to lock your main entrances and internal doors. Similarly, FDE secures all the content on your disk including files, the underlying operating system, or any other form of data. These days, it’s quite easy to achieve full disk encryption as many device manufacturers have created specialized software for encryption. Apple, for instance, offers a built-in encryption tool for macOS called FileVault2.

Inside FileVault2

FileVault2 uses XTS-AES-128 encryption with a 256-bit key and it is available in macOS X 10.7.5 or later. It provides strong encryption for the files and data in a drive. When you enable FileVault2, encryption happens in the background without causing any disruptions to your ability to work. Once FileVault2 is enabled, it always generates a recovery key. The difference is that you can store it locally (not using iCloud) or you can store it with Apple (and answer security questions to receive it); the latter is the safer key storage option. Also, it’s important to note that the key is generated for the computer, not the user, to be used for the disk itself. This key is the only way to decrypt the Mac if the user is locked out for any reason including forgotten password, loss of device, or hacking.

Enabling Full Disk Encryption on macOS Using FileVault2

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