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Computer Virus
Goal Glimpse
What is a Computer Virus? Types of Computer Virus
How Does a Computer Get Infected with a Virus?
How Do You Know Your PC Has a Virus?
How to Prevent Your PC from a Virus? Malware
Antivirus Firewall
Data and information stored on a computer are extremely valuable for both organisations and
individuals. Protecting these assets is essential, as losing data can be very damaging. To keep
computer systems and their data safe, people use various preventive measures. One common
threat to data security is a virus attack.
WHAT IS A COMPUTER VIRUS?
A computer virus is a malicious piece of code or program designed to corrupt data or program files
stored on a computer system. It infiltrates the system without the user's knowledge or consent,
often going undetected. Initially, viruses may only affect one computer, but if that computer is
connected to a network, the virus can spread to other systems, much like a biological virus spreads
between people. Once inside a computer, viruses disrupt normal operations, affecting resources
like processing power, memory, and installed software. This can lead to a slowdown in performance
or, in severe cases, cause irreversible damage to the hard drive. The acronym VIRUS stands for 'Vital
Information Resources Under Seize.
Harms Caused by Computer Viruses
Different viruses can impact your computer in various ways:
They can cause your hard disk to crash.
They may delete all or some of your data.
They can slow down your computer's processing speed.
They might reduce or block access to your computer's memory or hard disk.
They can prevent you from restarting your computer or cause it to repeatedly restart.
They can send emails from your account without your knowledge.
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