CUI Informed

An image of the cover of the Controlled Unclassified Information (“CUI”) Fundamentals book.

CUI Fundamentals

CUI Fundamentals is for those who are new to Controlled Unclassified Information (“CUI”) and the CUI program. It includes plain-English answers to nearly 100 frequently asked questions about CUI.  This helps you better understand the fundamentals of the CUI program!

CUI Informed

CUI Informed builds on the knowledge gained from CUI Fundamentals.  It includes detailed analyses of many aspects of the CUI program. The book includes knowledge tests and examples which help reinforce the concepts taught.  This helps empower you with a thorough understanding of the CUI program and CUI!

CUI Reference Guide

The CUI Reference Guide includes copies of critical laws, regulations, and agency policies that define the CUI program, with an emphasis on those used by the United States Department of Defense.


The United States Government creates a LOT of information.  That information exists across a spectrum of sensitivity levels. 

At one extreme is public information.  This information can be freely shared with anyone.

At the other extreme is “classified information”.  This information is so sensitive as to create national security concerns.  Classified information can only be shared with people who have a “need-to-know” that information.

Information Sensitivity Spectrum

Government Information Sensitivity Spectrum
An image of a person pulling files from a file room.

Controlled Unclassified Information

In the middle lies the vast majority of the government’s information: nonpublic, but unclassified. This information is not so sensitive that it creates national security concerns.  However, it is not meant to be publicly shared.

In some cases, Congress, federal agencies, or the President, have passed laws, regulations, or government-wide policies (“LRGWPs”) that require the information to be protected.  This LRGWP-protected information is referred to as Controlled Unclassified Information (“CUI”).

Although the LRGWPs require the information to be protected, in most cases they do not prohibit the sharing of the CUI.  In fact, the 9/11 Commission found that the September 11, 2001 attacks were caused by federal agencies not appropriately sharing unclassified information with other agencies.

Transformative Change

In response to the 9/11 Commission’s findings, the government created the CUI program.  The CUI program encourages the sharing of CUI among federal agencies, their partners, and contractors provided there is a lawful government purpose for the sharing.  It also establishes a consistent approach to safeguarding CUI.

While this may sound simple, actually encouraging agency employees to share information requires transformational changes to the way the government operates.  This kind of culture change needs to come from the top.  Those driving agency culture have other, competing priorities.  That is why, nearly eight years after the CUI program was formally launched, millions of federal employees, contractors, and others are still struggling to understand the CUI program.

CUI Informed, CUI Fundamentals, and the CUI Reference Guide were written for agency leadership, personnel, and contractors.  They give you the information and tools you need to understand and transform with the CUI program, and are a great way to kickstart or supplement your organization’s CUI training.

Butterflies transforming

Special Notes:

  1. Donations: A portion of the profits from every book sold is donated to the CMMC Information Institute to fund their educational work.  By purchasing through the affiliate links on this site, you help ensure more money is available for the CMMC Information Institute.
  2. Bulk Orders: For bulk orders (5 or more books), please contact the author for discounted pricing.
  3. Training: Looking for in-person or virtual CUI training for your organization?  Contact the CMMC Information Institute.