NIST 800-171
3.14 SYSTEM AND INFORMATION INTEGRITY
3.14.6
Monitor organizational systems including inbound and outbound communications traffic to detect attacks and indicators of potential attacks
System monitoring includes external and internal monitoring. External monitoring includes the observation of events occurring at the system boundary (i.e. part of perimeter defense and boundary protection). Internal monitoring includes the observation of events occurring within the system. Organizations can monitor systems for example by observing audit record activities in real time or by observing other system aspects such as access patterns characteristics of access and other actions. The monitoring objectives may guide determination of the events. System monitoring capability is achieved through a variety of tools and techniques (e.g. intrusion detection systems intrusion prevention systems malicious code protection software scanning tools audit record monitoring software network monitoring software). Strategic locations for monitoring devicesinclude selected perimeter locations and near server farms supporting critical applications with such devices being employed at managed system interfaces. The granularity of monitoring information collected is based on organizational monitoring objectives and the capability of systems to support such objectives.System monitoring is an integral part of continuous monitoring and incident response programs. Output from system monitoring serves as input to continuous monitoring and incident response programs. A network connection is any connection with a device that communicates through a network (e.g. local area network Internet). A remote connection is any connection with a device communicating through an external network (e.g. the Internet). Local network and remote connections can be either wired or wireless.Unusual or unauthorized activities or conditions related to inbound/outbound communications traffic include internal traffic that indicates the presence of malicious code in systems or propagating among system components the unauthorized exporting of information or signaling to external systems. Evidence of malicious code is used to identify potentially compromised systems or system components. System monitoring requirements including the need for specific types of system monitoring may be referenced in other requirements.[SP 800-94] provides guidance on intrusion detection and prevention systems.
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- NERC CIP-002 through CIP-014 Revision 6
- NIST 800-171
- NIST 800-172
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- SOC 2
- NIST 800-53
- NIST SP800-161 Supply Chain Risk Management
- NIST-CSF
- CIS Framework Controls V8
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