What is a Virus

Introduction

In computer terms, a "virus" is a type of malicious software (malware) designed to spread from one computer to another, often causing harm by corrupting files, stealing data, or disrupting system operations.

How Do Computer Viruses Work?

Computer viruses attach themselves to legitimate programs or files. When these infected files are opened or executed, the virus activates, replicates, and spreads to other files or systems.

Types of Computer Viruses

There are various types of computer viruses, including:

• File Infectors: Attach to executable files and spread when the files are opened.
• Boot Sector Viruses: Infect the boot sector of storage devices, making them harder to remove.
• Macro Viruses: Target applications like Microsoft Office by exploiting macro functionalities.
• Polymorphic Viruses: Change their code to evade detection by antivirus software.

Protecting Your System from Viruses

Here are some tips to safeguard your computer from viruses:

• Install Antivirus Software: Use reliable antivirus programs to detect and remove malware.
• Keep Software Updated: Regularly update your operating system and applications to patch vulnerabilities.
• Avoid Suspicious Links: Be cautious of links or attachments in emails from unknown sources.
• Use Firewalls: Enable firewalls to block unauthorized access to your system.

Conclusion

Computer viruses are a serious threat to cybersecurity. Understanding how they work and implementing preventive measures can help protect your system and data from malicious attacks.