Causes of Computer Virus


 
 
Concept Explanation
 

Causes of Computer Virus

A computer virus is a type of malicious software, or malware, that infects computers and corrupts their data and software. Worm, ILOVEYOU, SQL Slammer, Stuxnet, are some examples of computer viruses.

The following are the main causes of a Computer Virus.

  1. Infected Flash Drives or Disks:

Flash drives and disks are a big cause of spreading viruses. Flash drives and disks are used to transfer data from one computer to other. A virus can also be copied from one computer to other when the user copies infected files using flash drives and disks.

2. Email Attachments:

Most of the viruses spread through emails. Email attachment is a file that is sent along with an email, An email may contain an infected file attachment. Virus can spread if the users open and download such email attachment. It may harm the computer when it is activated. It may destroy files on the hard disk or may send the virus automatically to all email addresses saved in the address book.

3. Bluetooth:

Even less common than removable storage, a virus can also come from Bluetooth transfers. You can unknowingly have a virus transferred to your computer through a Bluetooth transfer. Again, the answer is to use anti-virus software to check all files gained through file transfer.

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Sample Questions
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Question : 1

A computer virus is a type of ____________________.

Right Option : D
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Question : 2

Which of the following is a potential source of computer viruses?

Right Option : A
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Question : 3

How do insecure websites infect computers with viruses?

Right Option : C
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