Glenn FleishmanSenior Contributor, Macworld

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Glenn Fleishman is the author of dozens of books, including mostly recently A Practical Guide to Networking, Privacy and Security in iOS 9. 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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Lock down your Mac, iPhone, and online accounts if you expect trouble ahead

You can take steps ahead of time to protect your social media, banking, email, and other accounts if you fear intrusion or retribution.

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How to switch iOS backup methods

A reader wants to backup and restore an iPad away from his usual iTunes setup.

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Fantastical 2.2 for OS X review: More maturity and integration with Exchange

A major update to Fantastical 2 refines rough edges, extends invitations, adds features like printing, and improves time-zone management.

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New iOS exploit works only on managed devices

Researchers find they can insert a rogue profile in an enterprise-configured iOS device, but it requires phishing to work.

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Podcast 501A*: If you got ’em, quantum

Trapped in a time beyond calculation, in a space beyond measure, our intrepid host hears voices.

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How to active or restore missing press-and-hold diacritical marks in OS X

A reader has a grave complaint about an acute problem adding accents.

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When Gmail messages in OS X’s Mail show the wrong sender

A reader has a mismatch between the body of a message and the ostensible sender.

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Podcast 501: The FBI says never mind

What. Just. Happened. Security expert Jonathan Zdziarski helps us process this strange turn of events in the Apple-FBI case.

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How to adjust left/right audio balance in iOS

A reader would like to compensate for hearing loss by rebalancing sound on his iOS device.

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How to set up a redundant backup system

Time Machine, cloning, or the tiger?

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Kanex Digital Audio Adapter for Apple TV review: Comes to the rescue of Apple TV owners

This adapter passes through video over HDMI from an Apple TV while splitting out audio in both stereo and surround-sound formats.

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Redfin balances location awareness and privacy with iBeacon deployment

A firm that offers for-sale-by-owner and brokerage services enhances its iPad app with an app connection.

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Burr's cipher, sir: The 1807 treason case that featured in the Apple/FBI conflict

The damned fool who shot Alexander Hamilton in a duel also, some historians believe, wanted to set himself up as the Emperor of Mexico. Coded dispatches led to his downfall, but not conviction.

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iOS 9.3: The new Night Shift feature probably won’t help you sleep better

Apple’s new automatic color-temperature adjustment will still keep your mind racing before bed. A lock-out feature might be more useful.

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Why your base station and OS X might report different Wi-Fi rates

A reader was concerned about network configuration due to different numbers and settings appearing depending on where he looked.