Glenn FleishmanSenior Contributor, Macworld

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Glenn Fleishman is the author of A Practical Guide to Networking, Privacy and Security in iOS 9 (October 2015), and a senior contributor to Macworld, where he writes the Private I and Mac 911 columns. He is also a regular contributor to the Economist and Fast Company, and an editor at The Wirecutter.

IPhone 6S launch in Palo Alto

Turns out: Apple offers prorated AppleCare refunds

Did you know you can get a partial refund from unused portions of AppleCare and AppleCare+? Neither did we.

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How to stop Calendar from duplicating iCloud synced events

Some users report a duplicate event appearing after every event they create on iCloud-sync calendars. Here are some strategies to fix it.

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How to get text messages for two-factor authentication without a phone number

Systems that offer a second step to log into an account often require a phone number to receive texts or voice calls. What if you have none?

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What causes the Java installation dialog to appear in OS X?

If you've seen it, you hate: the dialog box in OS X that tells you need "legacy" Java installed, but you're not using an app that relies on Java. We have ideas on getting rid of it.

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How to swap an iPhone 6 for a 6s: Doing the math on an early upgrade

New installment and upgrade options require a lot of math and a bit of timing to figure out when to get your next iPhone.

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New iPhones use LTE on any American carrier, despite the way they're listed

Despite what it implies on Apple's LTE carrier page, you can use any U.S.-compatible iPhone 6s or 6s Plus on all American LTE networks.

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How to leave the OS X beta program

If you've signed up for pre-release versions of Mac OS X, you can opt out with a single click.

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Podcast 477: Hello iPhone, good-bye Watch

Glenn sold his Apple Watch, and Susie bought a new iPhone. Time to talk about what a weird process that's becoming. Elsewhere, Amazon and Microsoft mess up, and content blocking gets messy.

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How to substitute Amazon or others for iCloud Photo Library

Apple gears its system around Photos syncing to iCloud Photo Library, if you choose that option. What if you want to use Amazon (or Dropbox or Google) instead?

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Appleā€™s new two-factor authentication bumps up security and ease of use

Apple is slowly rolling out a revised system to let you use a second factor with iCloud and other services that use an Apple ID.

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Imported photos in OS X don't appear in iCloud library

With iCloud Photo Library, a reader can't get images imported into OS X to appear everywhere.

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Bartender 2 review: OS X utility cleans up the menu bar

A new release of a favorite utility reduces the clutter up top in OS X.

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If you delete a photo from iCloud Photo Library, is it gone forever?

A reader wonders if accidental deletions have huge repercussions.

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Fantastical 2.1 for OS X review: An even better Calendar replacement

The overhaul of Fantastical brings it in parity with its iOS version and beyond; a 2.1 updated takes it even farther.

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Tweetbot 4 for iOS review: Twitter client adds split-view, activity monitor, other improvements

The latest update for this Twitter client brings it back into closer alignment with Twitter's site, but it continues to have its own excellent approach.