Viruses are self-replicating programs or code fragments that attach themselves to legitimate files or software. These malicious entities require a host program or file to infect, and they spread when users execute or open infected files.
Once activated, viruses can carry out various harmful actions, such as corrupting or deleting files, slowing down a computer's performance, or performing other malicious activities.
What is a computer virus?
Defending against viruses
Antivirus Software
Install reputable antivirus software that can detect and remove viruses. Ensure it is regularly updated to identify new threats.
Operating System Updates
Keep your operating system and software up to date with the latest security patches and updates to minimize vulnerabilities that viruses may exploit.
Safe Downloads
Download files and software only from trusted sources, and avoid suspicious websites or unverified download links.
Email Attachments
Be cautious when opening email attachments, especially from unknown or unexpected sources. Scan attachments with antivirus software before opening.
User Education
Educate users about the risks of downloading files or software from untrusted sources and the importance of not opening suspicious email attachments.
Regular Backups
Perform regular backups of important data. In case of a virus infection, you can restore your data from a clean backup.
Computer viruses can be spread through USB drives.
What is a keylogger?
Which of the following is NOT a good practice for staying safe from computer viruses?
To protect against computer viruses, it is important to regularly antivirus software.
