Glenn FleishmanSenior Contributor, Macworld

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Glenn Fleishman is the author of dozens of books, including mostly recently Take Control of Slack Basics, a book on mastering and becoming efficient in Slack. 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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Loopback review: An easy way to route your Mac’s audio to your software and devices

If you need to bundle two or more OS X audio sources to pass as input into another program, Rogue Amoeba's Loopback provides a simple, hack-free method.

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Gatekeeper flaw remains exploitable four months after its discovery

Other iterations of the flaw Patrick Wardle discovered in September in OS X's code-signing application checker remain in play.

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Podcast 490: iOS 9.3, CES, and the mess that is News

Susie and Glenn reunite to talk about everything from yoga robots to Apple's many failures to help the media business.

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Don't give open hotspots a security pass

Comcast offers iOS profiles and AT&T automatically connects your phone. Is that safe? A new hotspot standard will help.

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How to troubleshoot an ethernet drop

A former Macworld editor found himself baffled at an ethernet problem in a new house.

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Podcast 489: Comment Chameleon

Magnets? How do they work? Also, the latest security-reporting follies, more Apple TV thoughts, and bringing civility to commenting.

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How to avoid a surprising bill due to Wi-Fi Assist

Apple's iOS 9 extra for ensuring consistent Internet access comes switched on. We recommend turning it off in most cases.

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What to do when your iPhone battery is draining faster than usual

Your iOS device—especially an iPhone—can sometimes seem to drain its battery rapidly. How do you find the answer?

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How to edit PDFs when switching from Windows

A reader switching to OS X wants advice on working with PDFs.

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The slow death of old standards and Facebook's role

Facebook sits at the crossroads of two outdated standards that combine security problems with broad compatibility.

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How to deal with two identical Gmail mailboxes

Are they seeing double? A reader has two identical mailboxes from Gmail.

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Why is iCloud storage occupying space on my hard drive?

A reader is confused as to why they're seeing cloud storage subtracting from local drive space.

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Is blocking device necessary on Wi-Fi with a password set?

A reader finds a hidden feature, a bug, and a quandary in using Timed Access Control with Apple's Wi-Fi gear.

Use Timed Access Control to restrict when devices can connect to your Apple base station Wi-Fi

Your AirPort Extreme and Time Capsule can block certain devices at certain times of day, based on the device's MAC address. Here's how to set it up.

The sunset of a web security standard could bite your browsing

After too long a delay, the firms and organizations that interact on web-based encryption are ditching an outdated standard.