Framework overlap

Does NIST SP 800-181 cover SIG (Shared Assessments)?

You hold NIST SP 800-181 and have been told to do SIG (Shared Assessments). Here is how much overlaps, control by control.

13% of SIG (Shared Assessments) you already have

NIST SP 800-181 already covers about 13% of SIG (Shared Assessments), leaving 7 of 8 controls as genuinely new work.

Already covered 0 Likely covered 1 New work 7

No control in NIST SP 800-181 maps directly to one in SIG (Shared Assessments). Everything counted as covered is covered because both map to the same third standard, which is what a crosswalk is, but it is an inference rather than a lookup.

What is genuinely new work

Nothing in NIST SP 800-181 reaches these. This is the list to scope.

SHAREASSESS-1
Information Governance and Risk
SHAREASSESS-3
Network Security, Endpoint, Data Protection
SHAREASSESS-4
Vulnerability Management, Patching, Application Security
SHAREASSESS-5
Incident Response, BCM, DR
SHAREASSESS-6
Third Party / Subcontractor Management
SHAREASSESS-7
Privacy, Compliance, GDPR Alignment
SHAREASSESS-8
Cloud, SaaS, Infrastructure
Show the 1 you already have
SHAREASSESS-2
Access Control, Identity, Authentication

How this is calculated

Already covered means a mapping runs from a control in NIST SP 800-181 to that control. Likely covered means no direct mapping exists but both frameworks map to the same control in a third standard. New work means neither. We keep those separate rather than adding them into one friendlier number, because blending them would present a two-hop inference as a verified fact.

Coverage is not symmetric. Run it the other way and you will get a different number; both are correct.

From 332,959 cross-framework control mappings across 723 frameworks, 531 of them verified against their source documents. It does not tell you that you are compliant: a mapped control means the two standards ask for the same thing, not that you have done it.

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