Antivirus, short for "anti-virus", is a software program designed to detect, prevent, and remove malicious software, commonly known as malware, from a computer system. It is an essential tool for computer users as it protects their devices from various types of viruses, worms, Trojans, adware, spyware, ransomware, and other malicious programs that can cause harm or disruption.
Antivirus software works by scanning files, programs, and data stored on a computer or network to identify any suspicious or infected content. It uses a combination of signature-based detection and heuristic analysis to identify known malware based on preconfigured virus signatures as well as recognize patterns and behaviors commonly associated with malicious programs.
When a threat is detected, the antivirus software can quarantine, delete, or repair the infected files, ensuring the system's integrity and preventing further infection. It also provides real-time protection by continuously monitoring the system for any malicious activities, such as unauthorized access attempts or suspicious behaviors.
In addition to virus detection and removal, modern antivirus software often includes additional features such as web protection, email scanning, firewall, and secure browsing tools to enhance overall security. Regular updates are crucial to keep the antivirus software's database up to date with the latest threats and to ensure its effectiveness against new and emerging malware.
Overall, antivirus software plays a vital role in safeguarding computer systems and defending against the ever-evolving landscape of cybersecurity threats.
