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CompTIA Security+ SY0-401 In Depth by Mark Ciampa

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chapter 1Introduction to Security

After completing this chapter, you should be able to do the following:

• Describe the challenges of securing information

• Define information security and explain why it is important

• Identify the types of attackers that are common today

• List the basic steps of an attack

• Describe the five basic principles of defense

Today’s Attacks and Defenses

What is the deadliest security attack that you can imagine? A virus that erases all the contents of a hard disk drive? A malicious program that locks up files until the user pays a “ransom” to have them released? The theft of millions of user passwords? Although each of these attacks can be extremely harmful, the deadliest attacks could result in the actual death ...

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