Glenn FleishmanSenior Contributor, Macworld

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Glenn Fleishman is the author of dozens of books, including his newly released A Practical Guide to Networking, Privacy, and Security in iOS 10, a book that has information and step-by-step advice on connecting to and managing networks, and securing your data and your privacy. He's a senior contributor to Macworld, where he writes the Private I and Mac 911 columns and hosts the Macworld podcast, and contributes regularly to many periodicals.

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How to replace the missing optical-digital audio output on newer Macs

Apple dropped S/PDIF from its headphone jack in 2016 MacBook Pros and 2017 iMacs.

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How to restore items in the Finder sidebar

Are your Documents, Desktop, Home Folder, or other icons missing in the Finder sidebar? Here’s how to get them back.

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Apple Pay, AirDrop, and Handoff not working? Here’s what to do to get them to work again

Sometimes your phone is inches from your Mac, and yet neither sees the other.

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Slow Mac? Could be a hidden memory gobbler in macOS

Your Mac uses plug-ins that can eat up a lot of your systems's memory. Here's the fix.

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PureGear PureSwitch review: A HomeKit-only smart plug with a high-speed USB port

It’s a little more expensive than its features warrant, but it’s well designed for what it does.

on techhive.com

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How to keep iPhone data roaming costs down when traveling abroad

If you’re heading outside of your home country this summer, investigate options for keeping connected cheaply before you go.

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Why your Mac isn't working as fast as it says it is—and how you can fix it

Does an unwatched Mac slow down? Possibly! But there's something you can do about it.

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How iOS 11 changes location tracking on your iPhone and iPad

Apple is making it more obvious that an app is tracking your location as a background task.

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How to zoom using the Magic Trackpad in Safari

If you use a Magic Trackpad, you could accidentally activate zoom. Here's how.

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iPhone camera apps: 4 apps that take full advantage of iOS 10 and a photographers’ eye

We compare four camera apps for their manual controls, RAW export, and iPhone 7 Plus support.

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Glif review: Tripod adapter should be part of every smartphone photographer’s kit

With an adjustable locking clamp and three tripod screw points, the Glif provides incredible flexibility for an smartphone photographer.

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Why a Thunderbolt Display can’t power a new Thunderbolt 3 MacBook or MacBook Pro

A reader is frustrated at Apple's lack of futureproofing.

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macOS High Sierra: The new Safari takes steps to reduce persistent user tracking, but is it enough?

High Sierra Safari has Intelligent Tracking Prevention, but controlling browser-based blocking isn't the whole story.

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Podcast 565: So long (for now) and thanks for all the Mbps!

The iPhone is 10! iOS is 11 (public beta)! And AR is cool.

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How to fix the spinner after login in macOS

It had to happen. Your columnist’s Mac hits a figurative brick wall, but he figures out how to remove the mortar and get moving again.