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Category Archive: Macs

Apple has released an update to XProtect for all macOS

Apple has just released an update to XProtect, bringing it to version 5326. As usual, it doesn’t release […]

January 22, 2026 Macs, Technology, Updates

Can you still run old App Store apps?

Apps supplied through the App Store aren’t signed by their developer, but by Apple. Many now have certificates that have expired. When will they stop running?

January 22, 2026 Macs, Technology

Can you slim macOS down?

In a quest to reduce the number of processes running in macOS Tahoe, consider the example of Time Machine backups, which can easily be replaced by 3rd party alternatives.

January 21, 2026 Macs, Technology

Is that signing certificate still valid?

A developer signed an installer package in April 2017 and it’s still valid, but Apple signed a Catalina installer app in December 2019 and its certificate has now expired. This article explains why.

January 20, 2026 Macs, Technology

Solutions to Saturday Mac riddles 343

I hope you enjoyed Saturday’s Mac Riddles, episode 343. Here are my solutions to them. 1: In between […]

January 19, 2026 General, Macs, Technology

Which cryptexes does macOS Tahoe load?

Which system and AI cryptexes are loaded during macOS boot? Here are details of the 28 for AI in Tahoe 26.2, and which are new since Sequoia 15.5.

January 19, 2026 Macs, Technology

Last Week on My Mac: Local network privacy revealed

Local network privacy protection, introduced in macOS Sequoia, doesn’t use TCC as most others do, but sets up a packet filter in Network Extension. Here are details.

January 18, 2026 Macs, Technology

Saturday Mac riddles 343

Here are this weekend’s Mac riddles to entertain you through family time, shopping and recreation. 1: In between […]

January 17, 2026 General, Macs, Technology

What’s happening with code signing and future macOS?

An overview of code signing and certificate requirements to come when macOS 27 is released in a few months, supporting only Apple silicon Macs. How Intel Macs will be affected in the near future.

January 17, 2026 Macs, Technology

Can you disable Spotlight and Siri in macOS Tahoe?

If you don’t want any of their services, you can turn Siri off in its settings, and disable indexing and search in Spotlight settings. Or you can use mdutil, if you know its limitations.

January 16, 2026 Macs, Technology

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