critical application
163685·updated Oct 5, 2026No definition recorded.
Composition
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A system monitoring capability is achieved through a variety of tools and techniques (e.g., audit record monitoring software, intrusion detection systems, intrusion prevention systems, malicious code protection software, scanning tools, network monitoring software). Strategic locations for monitoring devices include selected perimeter locations and near server farms that support critical applications with such devices being employed at managed system interfaces. The granularity of monitoring the information collected is based on organizational monitoring objectives and the capability of the system to support such objectives.the sentence this term was read in
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An application classification assigned through impact analysis to any software system whose loss of availability, loss of integrity, or unauthorized access would materially impair an organization's mission, revenue, regulatory standing, or public safety obligations. It is distinguished from ordinary applications by the severity and breadth of harm its failure produces — not by its technical architecture — and the classification is operationalized by mandating a proportionately higher tier of security controls: stronger access governance, elevated monitoring priority, stricter change approval, and dedicated incident-response treatment. In federal and compliance frameworks, the category maps directly to what OMB Circular A-130 and NIST SP 800-18 call a "major application," meaning one that "requires special attention to security due to the risk and magnitude of harm resulting from the loss, misuse, or unauthorized access to or modification of the information in the application," because "certain applications, because of the information in them, require special management oversight and should be treated as major."
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