An unwanted program running on a computer is callec
A Sickness
B Encryption
C Pain
D Virus
The Correct Answer and Explanation is :
The correct answer is:
D. Virus
A computer virus is a type of unwanted software program that can infect and disrupt a computer’s operation. Just as biological viruses infect living organisms, a computer virus infiltrates a system without the user’s knowledge and often spreads to other devices. Computer viruses are typically designed to harm the host system, steal information, or exploit the system’s resources.
When a virus infects a computer, it attaches itself to a legitimate program or file and becomes part of it, making it difficult to detect. Once the infected file is executed, the virus can spread to other files or programs. Viruses can cause numerous issues, such as corrupting files, slowing down the system, or even causing a complete system failure. They may also create backdoors for cybercriminals to access sensitive data on the system.
A virus differs from other types of malware, such as worms or Trojans. While viruses require a host file or program to activate and spread, worms can replicate and spread independently. Trojans, on the other hand, disguise themselves as legitimate software to trick users into installing them.
Viruses are a major cybersecurity concern because they can cause widespread damage across networks, impacting businesses, governments, and individuals. To protect against viruses, it’s essential to use reliable antivirus software, regularly update the operating system, avoid opening suspicious emails or links, and back up important data. Awareness and safe practices can significantly reduce the risk of virus infections, helping maintain system security and stability.