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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featured articles
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.
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videos: computer security
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How Firewalls Work
Firewalls have helped protect computers in large companies for years. Now they're a critical component of home networks as well. What are they protecting you from?
Is cyberwar coming?
Hackers can disable digital infrastructure in minutes. Is it only a matter of time before countries attack one another's computers? Or have they already started?
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