# SI-12(3)_information-disposal

> Use the following techniques to dispose of, destroy, or erase information following the retention period: [organization-defined].

- Skill: `cyberstrikeus/si-12-3-information-disposal` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/si-12-3-information-disposal`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/si-12-3-information-disposal/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/si-12-3-information-disposal

---


# SI-12(3) Information Disposal

> **Enhancement of:** SI-12

## High-Level Description

**Family:** System and Information Integrity (SI)
**Framework:** NIST SP 800-53 Rev 5

Organizations can minimize both security and privacy risks by disposing of information when it is no longer needed. The disposal or destruction of information applies to originals as well as copies and archived records, including system logs that may contain personally identifiable information.

## What to Check

- [ ] Verify SI-12(3) Information Disposal is documented in SSP
- [ ] Confirm control is operating effectively
- [ ] Review evidence of continuous monitoring for SI-12(3)
- [ ] Verify enhancement builds upon base control SI-12

## How to Test

### Step 1: Review Documentation

Examine the System Security Plan (SSP) and related artifacts for SI-12(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                          |
| --------------- | -------------------------- | ------------------------------ |
| cloud-audit-mcp | Check integrity monitoring | `cloud_audit_monitoring`       |
| AWS CLI         | Review GuardDuty/Inspector | `aws guardduty list-detectors` |

## Remediation Guide

### Control Statement

Use the following techniques to dispose of, destroy, or erase information following the retention period: [organization-defined].

### Implementation Guidance

Organizations can minimize both security and privacy risks by disposing of information when it is no longer needed. The disposal or destruction of information applies to originals as well as copies and archived records, including system logs that may contain personally identifiable information.

## Risk Assessment

| Finding                                       | Severity | Impact                                      |
| --------------------------------------------- | -------- | ------------------------------------------- |
| SI-12(3) Information Disposal not implemented | High     | System and Information Integrity            |
| SI-12(3) partially implemented                | Medium   | Incomplete System and Information Integrity |

## CWE Categories

| CWE ID | Title                     |
| ------ | ------------------------- |
| CWE-20 | Improper Input Validation |

## References

- [NIST SP 800-53 Rev 5 - SI-12(3)](https://csrc.nist.gov/projects/cprt/catalog#/cprt/framework/version/SP_800_53_5_1_1/home?element=si-12.3)
- [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