Don't-Miss Security Stories

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Mac 911: A potpourri of OS X questions

This week, we answer questions about bookmark sync failure, managing Top Sites in Safari, dysfunction keys, and ransomware.

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Fire up your Mac's firewall

OS X has a built-in firewall. Here's how to use it.

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LastPass was hacked: Here's what you have to do

LastPass had the worst thing happen, but don't panic: You're still in the clear and your password is likely not cracked.

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Checking your Mac for viruses -- wait, what?

OS X does a pretty good job of stopping viruses and malware from attacking your computer. But there are steps you can take to further protect yourself.

Adware Mac

When adware attacks! And how to defeat it

If you download software from the Internet, you may have inadvertently installed adware on your Mac. Here's how to get rid of it.

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How to download your entire Google search history

Want a copy of your personal Google search history for your very own? Now you can export and download it, though it's in a funky file format.

on pcworld.com

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How to password-protect your Mac--and keep other people from using it

Whether you just bought a brand new MacBook or are tethered to a long-lasting Mac Pro, use these password tips and OS X's security features to keep your data away from prying eyes.

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How to keep your connected home safe: 7 steps you can take to boost home security

Making your home smart could also make it insecure. We'll show you how to avoid the most common pitfalls.

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How to keep your email private with PGP encryption on your Mac

GPGTools works with Mail.app and Thunderbird, and Keybase helps you publish your public key and verify other people's.

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What to do if your Mac refuses to accept your password

Topher Kessler offers tips for dealing with a Mac that won't accept a password.

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How to help your family stay more secure online

New Year's is the perfect time to review your Internet security measures, and help your family do the same.

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How to better manage passwords with Keychain Access

OS X's Keychain Access provides the avenue for managing and retrieving your passwords. Topher Kessler dives deeper into its password powers.

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Bad guys listening in? Take steps to avoid public Wi-Fi snooping

A reader is concerned about the security of his laptop on a public Wi-Fi network. We offer tips for keeping the bad guys out.