# System Backup – Cryptographic Protection (03.08.09)_system-backup-cryptographic-protection

> Protect the confidentiality of backup information.

- Skill: `cyberstrikeus/system-backup-cryptographic-protection-03-08-09-system-backu` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/system-backup-cryptographic-protection-03-08-09-system-backu`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/system-backup-cryptographic-protection-03-08-09-system-backu/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/system-backup-cryptographic-protection-03-08-09-system-backu

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# System Backup – Cryptographic Protection (03.08.09) System Backup – Cryptographic Protection

## High-Level Description

**Family:** Media Protection
**Framework:** NIST SP 800-171 Rev 3
**Applicability:** Systems processing, storing, or transmitting CUI

Protect the confidentiality of backup information.
Implement cryptographic mechanisms to prevent the unauthorized disclosure of CUI at backup storage locations.

## What to Check

- [ ] Verify System Backup – Cryptographic Protection (03.08.09) System Backup – Cryptographic Protection is implemented for CUI systems
- [ ] Review SSP documentation for System Backup – Cryptographic Protection (03.08.09)
- [ ] Validate CMMC Level 2 assessment objective for System Backup – Cryptographic Protection (03.08.09)
- [ ] Confirm POA&M addresses any gaps for System Backup – Cryptographic Protection (03.08.09)

## How to Test

### Step 1: Review System Security Plan

Examine the SSP for System Backup – Cryptographic Protection (03.08.09) implementation description and responsible parties.

### Step 2: Assess Implementation

```
# Verify security controls protecting CUI
# Check access controls, encryption, monitoring as applicable

# For Linux systems:
ls -la /etc/security/ 2>/dev/null
grep -r "CUI\|controlled" /etc/security/ 2>/dev/null

# For cloud:
# Use cloud-audit-mcp tools to assess posture
```

### Step 3: CMMC Assessment Validation

Verify this requirement passes CMMC Level 2 assessment methodology per SP 800-171A Rev 3.

## Tools

| Tool            | Purpose                      | Usage                  |
| --------------- | ---------------------------- | ---------------------- |
| cloud-audit-mcp | Assess cloud CUI environment | `cloud_audit_*` tools  |
| Manual Review   | SSP and POA&M review         | Documentation analysis |

## Remediation Guide

### Requirement Statement

Protect the confidentiality of backup information.
Implement cryptographic mechanisms to prevent the unauthorized disclosure of CUI at backup storage locations.

### Supplemental Guidance

The selection of cryptographic mechanisms is based on the need to protect the confidentiality of backup information. Hardware security module (HSM) devices safeguard and manage cryptographic keys and provide cryptographic processing. Cryptographic operations (e.g., encryption, decryption, and signature generation and verification) are typically hosted on the HSM device, and many implementations provide hardware-accelerated mechanisms for cryptographic operations. This requirement is related to [](#/cprt/framework/version/SP_800_171_3_0_0/home?element=03.13.11) 03.13.11.

## Risk Assessment

| Finding                                                                                                      | Severity | Impact                            |
| ------------------------------------------------------------------------------------------------------------ | -------- | --------------------------------- |
| System Backup – Cryptographic Protection (03.08.09) System Backup – Cryptographic Protection not implemented | Medium   | CUI Protection - Media Protection |
| System Backup – Cryptographic Protection (03.08.09) partially implemented (POA&M)                            | Low      | CMMC certification risk           |

## CWE Categories

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

## References

- [NIST SP 800-171 Rev 3](https://csrc.nist.gov/pubs/sp/800/171/r3/final)
- [NIST SP 800-171A Rev 3 (Assessment)](https://csrc.nist.gov/pubs/sp/800/171/a/r3/final)
- [CMMC Model Overview](https://www.acq.osd.mil/cmmc/)
- [NIST OSCAL Content](https://github.com/usnistgov/oscal-content)

## Checklist

- [ ] SSP documents System Backup – Cryptographic Protection (03.08.09) implementation
- [ ] Evidence of operating effectiveness collected
- [ ] POA&M addresses any gaps
- [ ] CMMC assessment objective met
- [ ] Continuous monitoring active