Antivirus softwareis apreventive security controldesigned to stop known malware threats before they can execute or spread within a system. Antivirus solutions use signature-based detection, heuristic analysis, and increasingly behavior-based techniques to block malicious code such as viruses, worms, trojans, and ransomware.
In contrast,IDS (Intrusion Detection Systems)andHIDS (Host-based IDS)are primarilydetective controls. They monitor systems and networks for suspicious activity but do not inherently block threats.SIEMplatforms aggregate and analyze logs for visibility and correlation; they support detection and response but do not directly prevent threats.
According to NIST SP 800-53, preventive controls are designed to stop incidents from occurring, while detective controls identify events after or during occurrence. Therefore, antivirus is the correct choice as it directly prevents threats.
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Question 41
Why is identifying roles and responsibilities important in IR planning?
Disaster Recovery includes restoring systems and returning operations to normal, which may involve staff moving back to the primary site after temporary relocation.
