MON-04: System Generated Event Logs & Security-Relevant Telemetry
Mechanisms exist to generate, monitor, correlate and respond to event logs and security-relevant telemetry from physical, cybersecurity, data protection and supply chain activities to achieve integrated situational awareness.
Renumbered: Formerly MON-01.4 in SCF 2025.4.
Code reused: In SCF 2025.4 and earlier, MON-04 was Event Log Storage Capacity. That control is now MON-10.
Control Question: Does the organization generate, monitor, correlate and respond to alerts from physical, cybersecurity, data protection and supply chain activities to achieve integrated situational awareness?
General (46)
US (17)
| Framework | Mapping Values |
|---|---|
| USA Federal CMS MARS-E 2.0 | SI-4(5) SI-4(5).a SI-4(5).b SI-4(5).c SI-4(5).d |
| USA Federal CISA CPG 2022 | 2.G 2.T |
| USA Federal DHS CISA SSDAF | 1.b.ii |
| USA Federal DHS CISA TIC 3.0 | 3.UNI.AACCO |
| USA Federal C2M2 2.1 | SITUATION-1a SITUATION-1b SITUATION-1c SITUATION-1d SITUATION-1f SITUATION-2e |
| USA Federal CERT RMM 1.2 | IMC:SG2 IMC:SG2.SP1 IMC:SG2.SP2 |
| USA Federal EO 14028 | 4e(i)(B) |
| USA Federal CJIS Security Policy 6.0 | SI-4(5) |
| USA Federal FedRAMP R5 (moderate) | SI-04(05) |
| USA Federal FedRAMP R5 (high) | SI-04(05) |
| USA Federal IRS 1075 2021 | SI-4(CE-5) |
| USA Federal 33 CFR Part 101 Subpart F | 101.650(c)(1) 101.650(h)(2) |
| USA Federal HIPAA Security Rule NIST SP 800-66 R2 | § 164.312(b) |
| USA Federal HIPAA Administrative Simplification 2013 | § 164.312(b) |
| USA Federal NERC CIP 2024 | CIP-007-6 4.1 CIP-007-6 4.2 |
| USA Federal TSA / DHS 1580/82-2022-01 | III.D.3.a |
| USA California CCPA 2025 | 7123(c)(7) |
EMEA (10)
| Framework | Mapping Values |
|---|---|
| EMEA Germany C5 2026 | OPS-05.03AC OPS-08.05B OPS-13.02B.4 OPS-13.02B.5 OPS-17.02B OPS-26.06B IAM-06.05B IAM-06.06B SSO-05.02AC COM-03.02AC |
| EMEA Spain CCN-STIC 825 | op.exp.8 |
| EMEA EU AI Act | Article 12.1 |
| EMEA UK CAF 4.0 | C1.a C1.c |
| EMEA UK DEFSTAN 05-138 2024 | 3101 |
| EMEA UK DEFSTAN 05-138 - L1 2024 | 3101 |
| EMEA UK DEFSTAN 05-138 - L2 2024 | 3101 |
| EMEA Saudi Arabia CSCC-1 2019 | 2-11 2-11-1-1 |
| EMEA Saudi Arabia ECC-1 2018 | 2-12 2-12-1 2-12-2 2-12-3 2-12-3-1 2-12-3-2 |
| EMEA Saudi Arabia OTCC-1 2022 | 2-11 2-11-1-1 |
APAC (6)
| Framework | Mapping Values |
|---|---|
| APAC Australia IoT Code of Practice 2024 | 7.0 |
| APAC Australia ISM June 2026 | ISM-1959 |
| APAC India RBI Digital Payments 2021 | 37.0 |
| APAC New Zealand HISF MLHSP 2023 | HHSP69 HML68 |
| APAC New Zealand HISF Suppliers 2023 | HSUP60 |
| APAC Singapore CCOP CII 2026 | 6.1.4 |
Americas (4)
| Framework | Mapping Values |
|---|---|
| Americas Argentina Reg 132 2018 | B.2.3-3 B.2.3-4 B.2.5-DS-3 |
| Americas Bermuda BMACCC 2020 | 6.21-BP6 |
| Americas Canada ITSP-10-171 2025 | 03.03.01.A 03.03.03.A 03.14.06.A.01 03.14.06.B 03.14.06.C |
| Americas Canada OSFI Self-Assessment Guidance | 3.2.7 |
Capability Maturity Model
Level 0 — Not Performed
Practices are non-existent, based on the inability to demonstrate an implemented and operational capability. A reasonable person would conclude the control is not being performed.
Level 1 — Performed Informally
SCR-CMM Level 1 criteria definitions are not available for this control: ▪ A reasonable person would conclude this control requires a structured process. ▪ At this level of maturity, the "ad hoc" nature of performing a capability informally would indicate the intent of the control is not met due to a lack of consistency and formality.
Level 2 — Planned & Tracked
Continuous Monitoring (MON) capabilities are requirements-driven, but are not standardized across the entity (e.g., local/regional level consistency). Capability criteria associated with this control reasonably expect the following criteria to exist: ▪ Policies and standards associated with MON domain capabilities are formally documented and centrally-managed by the entity. ▪ Standardized Operating Procedures (SOP) associated with MON domain capabilities are documented and maintained by process owners. ▪ IT and/or cybersecurity personnel work with business stakeholders and process owners to appropriately scope and reasonably implement cybersecurity and data protection controls associated with MON domain capabilities to address applicable statutory, regulatory and/or contractual requirements for Technology Assets, Applications, Services and/or Data (TAASD). ▪ Continuous monitoring-related controls are primarily administrative and preventative in nature (e.g., policies, standards and procedures & guidelines). ▪ Continuous monitoring may be a defined function (e.g., team or department) or assigned as an additional duty to existing IT and/or cybersecurity personnel. ▪ Secure Baseline Configurations (SBC) enforce security event logging to contain sufficient information to establish necessary details of activity and allow for forensics analysis. ▪ SBC enforce logging to link system access to individual users or service accounts using a non-repudiation capability to protect against an individual falsely denying having performed a particular action. ▪ SBC enforce local security event logging and forward those logs to a centralized log repository to provide an alternate audit capability in the event of a failure in the primary audit capability. ▪ A log aggregator, or similar automated tool, provides an event log report generation capability to aid in detecting and assessing anomalous activities on business-critical TAASD. ▪ IT and/or cybersecurity personnel configure alerts for critical or sensitive data that is stored, transmitted and processed on assets.
Level 3 — Well Defined
Continuous Monitoring (MON) capabilities are standardized across the entity for applicability to People, Processes, Technologies, Data and/or Facilities (PPTDF) to ensure consistency for Technology Assets, Applications, Services and/or Data (TAASD). Capability criteria associated with this control reasonably expect the following criteria to exist: ▪ Policies and standards associated with MON domain capabilities are formally documented and centrally-managed by the entity's Governance, Risk & Compliance (GRC) team, or similar function. ▪ Cybersecurity personnel use a structured process via Standardized Operating Procedures (SOP) to review and analyze logs. ▪ A Security Operations Center (SOC) team, or similar function, is appropriately staffed and supported to implement and maintain MON domain capabilities. ▪ Technology is leveraged to enhance the efficiency and accuracy of continuous monitoring operations (e.g., Security Incident Event Manager (SIEM)). ▪ The entity's Governance, Risk & Compliance (GRC) team, or similar function, works with business stakeholders and process owners to appropriately scope and reasonably implement cybersecurity and data protection controls associated with MON domain capabilities to address Minimum Compliance Requirements (MCR) (e.g., applicable statutory, regulatory and/or contractual requirements) and Discretionary Security Requirements (DSR) (e.g., entity-required controls). ▪ Secure Baseline Configurations (SBC) enforce security event logging to contain sufficient information to establish necessary details of activity and allow for forensics analysis. ▪ An implemented and operational capability exists to generate, monitor, correlate and respond to alerts from physical, cybersecurity, data protection and supply chain activities to achieve integrated situational awareness.
Level 4 — Quantitatively Controlled
Utilize SCR-CMM Level 3 criteria definitions: ▪ There are no defined Level 4 criteria, since it is reasonable to assume a quantitatively-controlled process is not necessary to operationalize this control. ▪ While it may be possible to develop “metrics-driven” capabilities for this control, the criteria would be organization-specific to define.
Level 5 — Continuously Improving
Utilize SCR-CMM Level 3 or Level 4 (if available) criteria definitions: ▪ There are no defined Level 5 criteria, since it is reasonable to assume a continuously-improving process is not necessary to operationalize this control. ▪ Level 5 capabilities should be considered “world-class” where the control builds on Level 4 capabilities, but are continuously improving through Artificial Intelligence (AI) and/or Machine Learning (ML) technologies. ▪ While it may be possible to develop responsive capabilities for this control through the use of AI and/or ML technologies, the criteria would be organization-specific to define.
Assessment Objectives
- MON-04_A01 audit records contain information that establishes what type of event occurred.
- MON-04_A02 audit records for the selected event types and audit record content are generated.
- MON-04_A03 personnel or roles to be alerted when indications of compromise or potential compromise occur is/are defined.
- MON-04_A04 compromise indicators are defined.
- MON-04_A05 personnel or roles are alerted when system-generated compromise indicators occur.
- MON-04_A06 audit records for the selected event types and audit record content specified in 03.03.01 and 03.03.02 are generated.
- MON-04_A07 event logs and security-relevant telemetry from physical, cybersecurity, data protection and supply chain activities are correlated to achieve integrated situational awareness.
Evidence Requirements
- E-MON-07 Situational Awareness
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Documented evidence of the organization leveraging knowledge of event log generation to gain situational awareness of cross-domain activities (e.g., technology issues, security events, policy violations, service provider activities, remote workforce activities, physical security events, etc.).
Event Log Monitoring
Technology Recommendations
Micro/Small
- Secure Baseline Configurations (SBC)
Small
- Secure Baseline Configurations (SBC)
Medium
- Secure Baseline Configurations (SBC)
Large
- Secure Baseline Configurations (SBC)
Enterprise
- Secure Baseline Configurations (SBC)