What is a primary goal of the "Detect" function within a security operations framework?

The primary goal of the "Detect" function within a security operations framework, such as the NIST Cybersecurity Framework (CSF), is to enable the timely discovery of cybersecurity events. This is achieved through continuous monitoring and analysis of systems, assets, and network traffic. Analyzing network traffic in real-time for potential indicators of compromise (IoCs) is a core activity of this function. It allows an organization to identify anomalies and malicious activities as they happen, which is fundamental to initiating an effective incident response.

A. This describes activities of the "Protect" function, which focuses on implementing safeguards to prevent security incidents.

C. This aligns with the "Identify" function (asset management) and the "Protect" function (access control policies).

D. This is a core component of the "Recover" function, which focuses on restoring capabilities after an incident has occurred.

1. National Institute of Standards and Technology (NIST). (2024). The NIST Cybersecurity Framework (CSF) 2.0. NIST Cybersecurity White Paper (CSWP) 29. Page 10, Section "The CSF Core".

The document defines the Detect (DE) function as: "Find and analyze possible cybersecurity attacks and compromises." One of its core categories is "Continuous Monitoring (DE.CM)," which involves analyzing data from various sources to detect cybersecurity events and verify the effectiveness of protective measures. This directly supports the real-time analysis described in the correct answer.

2. University of Washington. (n.d.). The NIST Cybersecurity Framework. Center for Information Assurance and Cybersecurity (CIAC). Module: "The Framework Core".

This university courseware explains that the Detect function's purpose is to "develop and implement the appropriate activities to identify the occurrence of a cybersecurity event." It explicitly lists "Security Continuous Monitoring" and "Detection Processes" as key categories, reinforcing that active analysis to find events is the central goal.

3. Badger, L., Grance, T., Patt-Corner, R., & Voas, J. (2014). Framework for Improving Critical Infrastructure Cybersecurity, Version 1.0. National Institute of Standards and Technology. Page 8, Section 2.1 "Framework Core".

The original NIST CSF document states the Detect function enables "timely discovery of cybersecurity events." It includes the category "Anomalies and Events (DE.AE): Anomalous activity is detected in a timely manner and the potential impact of events is understood." This directly relates to analyzing traffic for IoCs.