Course Description

Computer Virus - Definition, Types, Spread and Prevention

Computer viruses are malicious software programs that can cause harm to your computer system by corrupting files, stealing personal information, or disrupting normal operations. Understanding the different types of viruses, how they spread, and the methods to prevent them is crucial for maintaining the security of your computer.

There are various types of computer viruses, including trojans, worms, ransomware, spyware, and adware. Trojans disguise themselves as legitimate software to trick users into downloading them, while worms replicate themselves to spread across networks. Ransomware encrypts files and demands payment for decryption, while spyware monitors user activity without their knowledge. Adware displays unwanted advertisements.

Computer viruses can spread through email attachments, infected websites, USB drives, and network vulnerabilities. By clicking on malicious links or downloading infected files, users unknowingly introduce viruses into their systems. Prevention measures such as using reputable antivirus software, keeping operating systems and software up to date, and being cautious of suspicious emails or websites can help mitigate the risk of infection.

To protect your computer from viruses, it is essential to practice safe browsing habits, avoid downloading software from untrusted sources, and regularly scan your system for malware. Creating backups of important files and data is also crucial to ensure that you can recover in case of a virus attack.

By understanding the nature of computer viruses,