NIST SP 800-171 Rev 2 · 3.14 System & Information Integrity

3.14.5 Periodic and real-time scans

Perform periodic scans of organizational systems and real-time scans of files from external sources as files are downloaded, opened, or executed.

SPRS weight

3

3 points deducted from 110 when not implemented.

CMMC level

L1 + L2

Level 1 practice SI.L1-3.14.5, from FAR 52.204-21(b)(1)(xv)

Assessment objectives

3

From NIST SP 800-171A, each one a “determine if” an assessor answers.

What an assessor checks

NIST SP 800-171A breaks 3.14.5 into 3 objectives. Every one has to be met for the requirement to be met; a partial answer scores as not implemented.

1. [a]Determine if the frequency for malicious code scans is defined.
2. [b]Determine if malicious code scans are performed with the defined frequency.
3. [c]Determine if real-time malicious code scans of files from external sources as files are downloaded, opened, or executed are performed.

Examine

[SELECT FROM: System and information integrity policy; configuration management policy and procedures; procedures addressing malicious code protection; malicious code protection mechanisms; records of malicious code protection updates; security plan; system design documentation; system configuration settings and associated documentation; scan results from malicious code protection mechanisms; record of actions initiated by malicious code protection mechanisms in response to malicious code detection; system audit logs and records; other relevant documents or records].

Interview

[SELECT FROM: System or network administrators; personnel with information security responsibilities; personnel installing, configuring, and maintaining the system; personnel with responsibility for malicious code protection; personnel with configuration management responsibility].

Test

[SELECT FROM: Organizational processes for employing, updating, and configuring malicious code protection mechanisms; organizational process for addressing false positives and resulting potential impact; mechanisms supporting or implementing malicious code protection mechanisms (including updates and configurations); mechanisms supporting or implementing malicious code scanning and subsequent actions].

If it is open: POA&M eligibility

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.

Where 3.14.5 maps

Query it from your own tools

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 3.14.5
get_assessment_objectives 3.14.5
generate_poam_entries ["3.14.5"]

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