NIST SP 800-171 Rev 2 · 3.1 Access Control

3.1.13 Encrypt remote access

Employ cryptographic mechanisms to protect the confidentiality of remote access sessions.

SPRS weight: 5; 5 points deducted from 110 when not implemented.
CMMC level: L2; Level 2 only; not among the 17 Level 1 practices.
Assessment objectives: 2; From NIST SP 800-171A, each one a “determine if” an assessor answers.

What an assessor checks

NIST SP 800-171A breaks 3.1.13 into 2 objectives. Every one has to be met for the requirement to be met; a partial answer scores as not implemented.

[a]Determine if cryptographic mechanisms to protect the confidentiality of remote access sessions are identified.
[b]Determine if cryptographic mechanisms to protect the confidentiality of remote access sessions are implemented.

Examine: [SELECT FROM: Access control policy; procedures addressing remote access to the system; security plan; system design documentation; system configuration settings and associated documentation; cryptographic mechanisms and associated configuration documentation; system audit logs and records; other relevant documents or records].
Interview: [SELECT FROM: System or network administrators; personnel with information security responsibilities; system developers].
Test: [SELECT FROM: Cryptographic mechanisms protecting remote access sessions].

Not POA&M-eligible: above the 1-point ceiling · 5 points deducted

Worth 5 points. No requirement over 1 point may appear on a Level 2 POA&M, so this has to be closed before the assessment.

A POA&M is only permitted at a score of 88 or above, and closes in one 180-day window. Check a full gap list or compute your score.

No direct mapping.

This page and the MacTech CMMC MCP server render the same dataset. Ask your assistant and it will answer from the methodology, not from memory.

lookup_control 3.1.13
get_assessment_objectives 3.1.13
generate_poam_entries ["3.1.13"]

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