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The internet is a nosy place. In this series, Lifehacker explains how to protect one of the most important aspects of modern life: your privacy.

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The Best Internet Browsers for Protecting Your Privacy (and the Worst One)
 
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What VPNs Can Do (and What They Can't)
 
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How Passwords Managers Work (and Why You Should Finally Start Using One)
 
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What Is a Browser Cache, Anyway?
 
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What You Gain (and Lose) by Using Ad Blockers
 
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How Far Do You Go for Online Privacy?
 
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