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 systems channel
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 Zombie Computers Work
When hackers take over computers to do their Internet bidding, they create zombie computers. Allegedly, one hacker under investigation used a single computer to control a network of more than 1.5 million zombie computers.
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videos: computer security
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Is cyberbullying getting out of control?
With the evolution of the Internet, the big kid in class who used to steal your lunch money has evolved into a new kind of bully -- one who hacks your e-mail, sends you threatening messages and sabotages your computer.
How Hackers Work
Without hackers, we'd have no PCs or iPods. Yet, hackers have gotten a bad reputation as criminals of the computer age. Are they friends or foes?
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