Cybersecurity For Dummies. Joseph Steinberg

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against These Attackers

      

It is important to understand that there is no such thing as 100 percent cybersecurity. While people used to joke that you could get a 100 percent cybersecure computer by using a manual typewriter, even that was not true; if you used a manual typewriter instead of a computer, someone could potentially decipher what you would be typing by closely listening to the sounds of the letters striking paper, as each letter produces a slightly different sound when inking the page.

      Rather than 100 percent cybersecurity, we must pursue adequate cybersecurity, which is defined by understanding what risks exist, which ones are adequately mitigated, and which ones persist.

      Defenses that are adequate to shield against some risks and attackers are inadequate to protect against others. What may suffice for reasonably protecting a home computer, for example, may be wildly inadequate to shield an online banking server. The same is true of risks that are based on who uses a system: A cellphone used by the President of the United States to speak to advisors, for example, obviously requires better security than the cellphone used by the average sixth grader.

Part 2

      Improving Your Own Personal Security

IN THIS PART …

      Understand why you may be less cybersecure than you think.

      Find out how to protect yourself against various cyberdangers.

      Learn about physical security as it relates to cybersecurity.

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