Antivirus software is a crucial tool in the realm of cybersecurity, designed to detect, prevent, and remove malicious software, commonly known as malware. It works by scanning files and programs on a computer to identify and eliminate threats, ensuring the safety of personal and sensitive information. In addition to traditional virus detection, modern antivirus solutions often include features like real-time protection, firewall capabilities, and web protection to guard against online threats. By regularly updating their virus definitions, these programs can effectively combat new and evolving threats, making them essential for maintaining a secure digital environment.