# SC-5(3) — Detection and Monitoring

- **Control ID:** SC-5(3)
- **Family:** [SC](/md/families/SC.md)
- **Baselines:** No content available.
- **Enhancement of:** [SC-5](/md/controls/SC-5.md)

## Description

Employ the following monitoring tools to detect indicators of denial-of-service attacks against, or launched from, the system: \[assignment\] ; and Monitor the following system resources to determine if sufficient resources exist to prevent effective denial-of-service attacks: \[assignment\].

## Discussion

Organizations consider the utilization and capacity of system resources when managing risk associated with a denial of service due to malicious attacks. Denial-of-service attacks can originate from external or internal sources. System resources that are sensitive to denial of service include physical disk storage, memory, and CPU cycles. Techniques used to prevent denial-of-service attacks related to storage utilization and capacity include instituting disk quotas, configuring systems to automatically alert administrators when specific storage capacity thresholds are reached, using file compression technologies to maximize available storage space, and imposing separate partitions for system and user data.

## Implementation guidance

No content available.

## CSF 2.0 subcategories

No content available.

## Related controls

- [CA-7](/md/controls/CA-7.md)
- [SI-4](/md/controls/SI-4.md)

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Derived from official NIST publications (NIST SP 800-53 Rev 5 and NIST CSF 2.0). nistcontrols.com is not affiliated with NIST.