Framework for Improving Critical Infrastructure Cybersecurity Version 1.1 Draft 2 National Institute of Standards and Technology Revised December 5, 2017 Revised December 5, 2017 Cybersecurity Framework Version 1.1 Draft 2 ii DRAFT NotetoReviewersontheUpdateandNextSteps1 Version 1.1 Draft 2 of Cybersecurity Framework refines, clarifies, and enhances Version 1.0 2 issued in February 2014. 3 Version 1.1 is intended to be implemented by first-time and current Framework users. 23 Beyond key refinements, clarifications, and enhancements from the first draft, revisions in this 24 draft include: 25 Update Description of Update Clarifications and revisions to cybersecurity measurement language Revised and retitled Section 4.0 to emphasize the correlation of business results to cybersecurity risk management.

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