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Authentication
Authentication is the action of identifying your digital identity. Get educated on passwords, encryption keys, facial recognition and fingerprint scanners. See more »
what's inside: computer security
Computer security is an increasingly important consideration. From authentication to encryption keys, learn how to keep your computer's hard drive protected and your personal information safe.
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Computer & Internet Security
Computer surveillance and security covers a wide range of ways to keep you and your information safe. Learn about firewalls, zombie computers, hackers and workplace surveillance. See more »
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How CAPTCHA Works
Are you a computer? If you've ever successfully filled in a CAPTCHA on the Web, you're probably not. So what is this test, and what does it do?
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Can the government see what Web sites I visit?
The United States government is pretty much on your side when it comes to advocating for Internet browsing freedom. But some special circumstances merit Big Brother's watchful eyes.
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