What is the function of antivirus software?

Antivirus software serves a critical function in protecting computer systems from malicious software, commonly known as malware. Its primary responsibility is to detect, quarantine, and remove malware, which can include viruses, worms, Trojans, ransomware, and spyware. By continuously monitoring the system for suspicious activity and scanning files for known threats, antivirus software helps safeguard personal and sensitive information, ensuring the security and integrity of the computer system.

While increasing computer speed, creating file backups, and facilitating online shopping may be beneficial features or functions provided by some software or tools, they do not align with the primary purpose of antivirus software, which is solely focused on fighting malware threats.