write a $3-$ to $4-$page memo to the CIO of the organization recommending a vulnerability assessment tool and assessing how it meets the intent of the NIST CSF$.$ Provide an overview of the following in your memo:

The definition and purpose of a vulnerability assessment tool

Your recommended selection of a vulnerability assessment tool

Justification for your recommendation

A description of how your recommended tool fits within the NIST CSF that includes the following:

A diagram illustrating the $5$ core functions

An explanation of where the vulnerability assessment tool resides within a core function, including its category

An explanation for why the tool fits within that category of the selected core function

Include citations, as necessary, in APA format.