Understanding Computer Viruses and Leading Antivirus Solutions
Learn about different types of computer viruses and explore top antivirus software options like Norton, McAfee, and Bitdefender. Understand how these tools protect your system from malware, spyware, and other cyber threats to ensure online safety. This guide helps you choose the right security solution for your device, maintaining optimal performance and data security.

Understanding Computer Viruses and Leading Antivirus Solutions
A computer virus is a malicious software program designed to infect systems by replicating and overwriting files. Sometimes, the term also refers to other malware types. Infected files or discs can transfer viruses when systems are booted, causing significant damage. These threats lead to substantial financial losses annually by disrupting operations, corrupting data, and increasing maintenance costs. Various viruses threaten digital operations and online services. Below are key threats that jeopardize device security and data integrity.

Types of Viruses
● Browser hijacker – Redirects your web browser to unwanted sites, often used to generate ad revenue.
● Boot sector virus – Historically affecting floppy disks, now mostly obsolete, targeting boot records from early devices.
● Resident virus – Embeds itself into system memory, gaining control until it leaves behind infected files.
● Polymorphic virus – Continuously changes its code, making detection difficult for basic antivirus programs.
● Web scripting virus – Injects malicious code into online videos or comment sections, hijacking website interactions.
Trojan Horse – disguises malicious software as legitimate programs, tricking users into installation.
Worms – Self-replicating malware spreading through networks, emails, or infected web pages.
Spyware – Steals sensitive information without user consent.
Effective antivirus software is essential to prevent these threats. Leading options include:
● Norton – Recognized for robust protection, Norton 360 detects and removes complex threats, with automatic updates ensuring continuous security.
● McAfee – Offers comprehensive security against malware, spyware, ransomware, and spam, with real-time threat alerts and firewall protection.
● Bitdefender – Handles billions of security queries daily, swiftly detecting emerging threats without draining system resources.
Choose an antivirus solution that aligns with your needs and provides real-time system monitoring to keep your device safe from internet-based threats.