Cyber Snap Tip#13 with Viet: NIST SP 800-171 Revision 3 vs. Revision 2: Key Updates

- Simplified Intro: Clearer, more user-friendly introduction.

- Unified Requirements: Merged basic and derived security requirements.

- Updated Controls: Reflects the latest changes from SP 800-53 Revision 5.

- More Specific: Enhanced detail to remove ambiguity and improve implementation.

- No Non-Federal Organization (NFO) Tailoring: Removed the non-federal organization control tailoring category.

- New other related control (ORC) Category: Added a category for controls addressed by related controls.

- Organization-Defined Parameters (ODP): Introduced for better flexibility and risk management.

- Defined ODP Responsibilities: Clarified who sets ODP values.

- Outdated Requirements Removed: Streamlined by removing redundant requirements.

- Integrated Requirements: Combined requirements for consistency and ease of use.

- New Security Requirements: Added due to changes in control categorization.

- Improved Discussions: Better organization of discussion sections.

- Revised Tailoring Categories: Updated for selected controls.

- Updated Mapping Tables: New tables show changes from Revision 2.

- ODP Appendix: Consolidated ODPs in a single, easy-to-reference appendix.

- New CUI Overlay: Separate document available for additional guidance.

- Consistent Numbering: Added leading zeros for better consistency and tool support.

Keep your cybersecurity practices up-to-date with the latest NIST SP 800-171 Revision 3.

Source: Frequently Asked Questions: NIST SP 800-171 Rev. 3 and NIST SP 800-171A Rev. 3