题目内容
As long as you read this document seriously and put what you learn into practice, you’ll have the chance to make your computer completely secure.
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You can’t know all the software vulnerabilities of all software used on your computer but a professional can.
The computer that is not connected to the Internet can be completely secure.
This paragraph tells web administrators to adopt the idea of “layered security”.
The so-called “layered security” is the idea of having multiple ways of preventing an intrusion.
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