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An ever-increasing number of Web sites boost their security via two-factor authentication (2FA), which requires you to type in a short numeric code to complete a login after entering your username and password. It’s a big win because that code is generated on the fly and is good for only a short time (often 30 seconds). So even if your username and password were revealed in a data breach, your account is safe if you use 2FA. We recommend using it whenever possible.You get these codes—usually six digits—in one of two ways. The most common is via an SMS text...

Apple has put a lot of effort into Mail, providing lots of features you can employ to get through your email more quickly. But one of the most effective ways to improve your email productivity has nothing to do with an app. Instead, train yourself to write better email and you’ll cut down on a lot of unnecessary back-and-forth and confusion. Remember, email is not chat—you say things in an interactive conversation that could take days to untangle in an email thread. Here are some of the top ways to ensure that your email achieves your goals.1. Write a good...

It’s extremely uncommon for a Mac to freeze or crash these days, but it can happen. What should you do if your Mac locks up and becomes completely unresponsive to the mouse and keyboard? The trick is to press and hold the power button until the Mac turns off. Wait 5 or 10 seconds, and press it again to turn the Mac back on. You will lose any unsaved changes if you do this, so use it only as a last resort when you can’t restart normally. Look for the power button on the back of a desktop Mac, and...

If you’ve filled up your external hard drives or become frustrated by their limitations, it’s time to look into a network-attached storage (NAS) device. What’s a NAS? It’s an intelligent storage device that can accept one or more hard drives or SSDs and connects to your network via Ethernet.NAS BenefitsA NAS is a good choice for anyone who needs access to lots of storage, but small businesses will particularly appreciate the benefits of a NAS. They include: More storage: Most NAS devices provide multiple drive bays, so you can pop in a few large hard drives or even attach expansion...

Have you wondered what you can do with the Wallet app on your iPhone? Although it started out life called Passbook, Apple soon realized that the only sensible name was Wallet. That’s because it stores digital versions of roughly the same sort of things you might put in a physical wallet: credit and debit cards, store cards, membership cards, and even cash (well, Apple Pay Cash, anyway).Nearly all airlines can put your boarding passes in Wallet, too, and if you buy something like a concert ticket online, you may be able to add it to Wallet by tapping the “Add...