FUNDAMENTALS OF COMPUTER

COMPUTER THREATS SECURITY

WHAT IS COMPUTER SECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Computer viruses are spread by?
A
Dowloading files such as games, videos, audio
B
Searching the internet for information
C
E-mail attachments
D
Portable devices such as USB sticks or external hardrives
E
Playing games on your computer
Explanation: 

Detailed explanation-1: -Typically, computer viruses spread through malicious online downloads, infected email attachments, or by plugging in infected hardware like an external flash drive (USB stick). Computer viruses can spread through almost any method of file sharing, as long as the virus can avoid detection by antivirus programs.

Detailed explanation-2: -Malware and other types of computer virus can be easily spread through the use of USB drives and other devices plugged to your computer. This usually happens when a malware-infected PC transfers itself onto a USB drive, without the user ever knowing.

Detailed explanation-3: -And unfortunately, the answer is yes. Viruses can (and often do) spread from drive to drive. When a virus manages to make its way onto your computer it can potentially infect any other drives that are connected to that computer – even USB hard drives, USB flash drives drives and flash media cards.

Detailed explanation-4: -USB used with infected system At times there are systems that are already infected with the USB drive shortcut virus. If you connect the USB with any such systems the chances are that it will get infected. The files in the USB drive will be hidden and the virus will then spread to the other systems as well.

Detailed explanation-5: -When the viral programs are executed, the virus examines the hard drives to see whether there is a susceptible program on the disk. If found, the virus adds the viral code to the program or replaces the program or file with its own code. The virus has now reproduced itself so that two or more programs are infected.

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