Cybersecurity Concepts and Definitions

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CIA Triad

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Confidentiality + Integrity + Accessibility; the qualities to consider when sending a private encrypted message

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tradeoff

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giving up something in order to have something different

Example: You could make your message encrypted x 1,000,000 to increase its confidentiality, but it will take the computer at the other end longer to decrypt it, affecting the accessibility

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encryption

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putting a message into a secret code so that only authorized people can read it

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decryption

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taking a message that has been encrypted back to its original text so that is can be read

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packet

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part of a message sent digitally, numbered to make the message easier to reassemble at the destination

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network

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two or more computers connected so they have access to each other or a common server; the Internet is the largest

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access point

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a way to interact with the internet (computer, phone, modem, etc.)

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router

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a device that passes along information to any paths it connects; digital traffic passes through and is directed and redirected by these as needed

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ISP

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internet service provider; the company that you pay to provide internet to you

Examples: AT&T, Spectrum, T-Mobile, Verizon

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cybersecurity

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the practice of keeping digital information safe from attack and available to users