# CA-7(3)_trend-analyses

> Employ trend analyses to determine if control implementations, the frequency of continuous monitoring activities, and the types of activities used in

- Skill: `cyberstrikeus/ca-7-3-trend-analyses` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/ca-7-3-trend-analyses`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/ca-7-3-trend-analyses/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: cyberstrikeus (https://skillmd.com/u/cyberstrikeus)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cyberstrikeus/ca-7-3-trend-analyses

---


# CA-7(3) Trend Analyses

> **Enhancement of:** CA-7

## High-Level Description

**Family:** Assessment, Authorization, and Monitoring (CA)
**Framework:** NIST SP 800-53 Rev 5

Trend analyses include examining recent threat information that addresses the types of threat events that have occurred in the organization or the Federal Government, success rates of certain types of attacks, emerging vulnerabilities in technologies, evolving social engineering techniques, the effectiveness of configuration settings, results from multiple control assessments, and findings from Inspectors General or auditors.

## What to Check

- [ ] Verify CA-7(3) Trend Analyses is documented in SSP
- [ ] Confirm control is operating effectively
- [ ] Review evidence of continuous monitoring for CA-7(3)
- [ ] Verify enhancement builds upon base control CA-7

## How to Test

### Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for CA-7(3) implementation details. Verify the organization has documented how this control is satisfied.

### Step 2: Validate Implementation

```
# For cloud environments, use cloud-audit-mcp tools
# For on-premises, review system configurations directly

# Example: Check if account management policies exist
grep -r "account.management\|access.control" /etc/security/ 2>/dev/null
```

### Step 3: Test Operating Effectiveness

Verify the control is actively functioning, not just documented. Check logs, configurations, and operational evidence.

## Tools

| Tool          | Purpose                           | Usage |
| ------------- | --------------------------------- | ----- |
| Manual Review | Documentation and interview-based | N/A   |

## Remediation Guide

### Control Statement

Employ trend analyses to determine if control implementations, the frequency of continuous monitoring activities, and the types of activities used in the continuous monitoring process need to be modified based on empirical data.

### Implementation Guidance

Trend analyses include examining recent threat information that addresses the types of threat events that have occurred in the organization or the Federal Government, success rates of certain types of attacks, emerging vulnerabilities in technologies, evolving social engineering techniques, the effectiveness of configuration settings, results from multiple control assessments, and findings from Inspectors General or auditors.

## Risk Assessment

| Finding                                | Severity | Impact                                               |
| -------------------------------------- | -------- | ---------------------------------------------------- |
| CA-7(3) Trend Analyses not implemented | Medium   | Assessment, Authorization, and Monitoring            |
| CA-7(3) partially implemented          | Low      | Incomplete Assessment, Authorization, and Monitoring |

## CWE Categories

| CWE ID | Title                 |
| ------ | --------------------- |
| N/A    | No direct CWE mapping |

## References

- [NIST SP 800-53 Rev 5 - CA-7(3)](https://csrc.nist.gov/projects/cprt/catalog#/cprt/framework/version/SP_800_53_5_1_1/home?element=ca-7.3)
- [NIST SP 800-53A Rev 5 (Assessment Procedures)](https://csrc.nist.gov/pubs/sp/800/53/a/r5/final)
- [NIST SP 800-53 Rev 5 Full Catalog](https://csrc.nist.gov/pubs/sp/800/53/r5/upd1/final)

## Checklist

- [ ] Control documented in SSP
- [ ] Implementation evidence collected
- [ ] Operating effectiveness validated
- [ ] Continuous monitoring in place
- [ ] Related controls (none) reviewed