What is the role of antivirus software in cyber security systems?

Antivirus software works as a core defense in protecting systems from malicious software and external threats by using various methods such as signature-based detection, heuristic analysis, behavioral analysis, and real-time monitoring. Signature-based detection involves comparing files or code against a database of known malware signatures. Heuristic analysis examines the behavior of programs to identify potential threats based on suspicious or deviant patterns. Behavioral analysis tracks the actions of programs and looks for abnormal or dangerous behavior. Real-time monitoring actively scans files and processes as they are accessed to detect and block any potential threats. By utilizing these methods, antivirus software can help prevent, detect, and remove viruses, worms, trojans, ransomware, and other types of malware to keep systems secure.