题目内容
There are a lot of measures for you to eliminate all the unrecognized virus or worm programs as long as you can make full use of them.
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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.
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”.
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