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encryption

What to do with your encrypted HFS+ disks

Have you got any encrypted HFS+ disks you still back up to, or tucked away in storage? Now is the time to plan what to do with them. Here is a guide with practical suggestions.

June 17, 2026 Macs, Technology

Explainer: Disk encryption

Apple has announced that support for HFS+ encryption will be removed in a future version of macOS. How this is all about ending support for CoreStorage, and where it has gone since then.

June 13, 2026 Macs, Technology

Disk image performance: the cost of encryption rises

The new ASIF disk image type is now 18 months old. How well does it perform? Is it as good as claimed? It all depends on whether you want to use encryption.

March 23, 2026 Macs, Technology

Explainer: FileVault

T T Read More

The T2 chip was designed for FileVault, and it comes at no cost to that and in Apple silicon Macs. Here’s how it works, and why everyone should enable it.

October 18, 2025 Macs, Technology

Encryption and checking hashes slows faster SSDs

Does software encryption (APFS Encrypted) result in significant overhead when using faster SSDs with a faster Apple silicon Mac? What about computing SHA256 digests?

July 17, 2025 Macs, Technology

macOS Tahoe extends quantum-secure encryption

Encryption for iMessage has been switching to an improved method to resist quantum attacks. Tahoe and its sisters take the next step, and add quantum-secure encryption for Internet connections.

July 7, 2025 Macs, Technology

What’s the future for your Intel Mac?

If you’re still using an Intel Mac, do you know when its macOS support will end? Is it worth upgrading any more when most of the new features are for Apple silicon Macs?

July 4, 2025 Macs, Technology

How keys are used in FileVault and encryption

How your password isn’t used to encrypt the Data volume on your Mac’s internal SSD, but is used to encrypt the key used for that encryption, and the benefits.

June 25, 2025 Macs, Technology

Prepare your Mac for safe disposal

You’ve set up your new Mac, and now need to prepare the old one for disposal, maybe to a friend, relative or someone buying it, or to go for recycling. What to do next,

June 4, 2025 Macs, Technology

Save space on the internal SSD by adding another volume

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If you’ve got large files like Virtual Machines or media libraries on the Data volume on your Mac’s internal SSD, use this method to keep the size of its snapshots smaller.

May 28, 2025 Macs, Technology

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