NIST Unveils Cybersecurity Framework

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On February 12th, the National Institute of Standards and Technology (NIST) released its long-anticipated Framework for Improving Critical Infrastructure Cybersecurity[1] together with a companion Roadmap for Improving Critical Infrastructure Cybersecurity.[2] The Framework is issued in accordance with President Obama’s February 19 Executive Order 13636, Improving Critical Infrastructure Cybersecurity Version 1.0.,[3] which tasked NIST with developing a cost-effective Framework “to reduce cyber risks to critical infrastructure.”[4] The companion Roadmap discusses NIST’s next steps with the Framework and identifies key areas of development, alignment of cybersecurity standards and practices within the U.S. and globally and collaboration with private and public sector organizations and standards-developing organizations.

The Framework applies to organizations in critical infrastructure.[5] But, given the pervasiveness of cybersecurity incidents, and the ever-present, increasing, and evolving cyber risk threat, all organizations should consider whether their current cybersecurity risk management practices would pass muster under the Framework.  In addition, although the Framework is “voluntary”—at least so far—organizations are advised to keep in mind that creative class action plaintiffs (and even some regulators) may nevertheless assert that the Framework provides a “de facto” standard for cybersecurity and risk management even for non critical infrastructure organizations. One thing that companies should consider as they review the Framework is what “Tier” of cybersecurity risk management they wish to achieve.  The Tiers—which range from “informal, reactive” responses to “agile and risk-informed” are addressed below, together with an overview of the Framework and additional detail regarding certain of its key aspects.

Overview
At a high level, as its name indicates, the Framework provides a framework for critical infrastructure organizations to achieve a grasp on their current cybersecurity risk profile and risk management practices, to identify gaps that should be addressed in order to progress towards a desired “target” state of cybersecurity risk management, and to internally and externally communicate efficiently about cybersecurity and risk management.  

Building from global standards, guidelines, and practices, the Framework provides a common taxonomy and mechanism for organizations to:

  1. Describe their current cybersecurity posture;
  2. Describe their target state for cybersecurity;
  3. Identify and prioritize opportunities for improvement within the context of a continuous and repeatable process;
  4. Assess progress toward the target state;
  5. Communicate among internal and external stakeholders about cybersecurity risk.

NIST has emphasized that the Framework “complements, and does not replace, an organization’s risk management process and cybersecurity program.”[6] In addition, NIST properly notes that the Framework “is not a one-size-fits-all approach” to managing cybersecurity risk, given that organizations “have unique risks—different threats, different vulnerabilities, different risk tolerances.[7]

In releasing the Framework, NIST explained that it provides a structure that organizations, regulators, and customers can use to create, guide, assess, or improve comprehensive cybersecurity programs and “a common language to address and manage cyber risk in a cost-effective way” based on business needs, without placing additional regulatory requirements on businesses.”[8] NIST also notes that organizations can use the framework “to determine their current level of cybersecurity, set goals for cybersecurity that are in sync with their business environment, and establish a plan for improving or maintaining their cybersecurity.”[9] Moreover, because it references globally recognized standards for cybersecurity, the Framework can also be used by organizations located outside the United States and can serve as a model for international cooperation on strengthening critical infrastructure cybersecurity.

Although applying to organizations in critical infrastructure, the Framework may be used by any organization as part of its effort to assess cybersecurity practices and manage cybersecurity risk.

Three-Part Approach
The Framework adopts a risk-based approach composed of three parts: the Framework Core, Framework Profile, and Framework Implementation Tiers.

Framework Core
The Framework relies upon existing global cybersecurity standards, guidelines, and practices as a basis to build or enhance an organization’s cybersecurity risk management practices.

The Framework Core presents five high-level “Functions,” which, as stated by NIST, “organize basic cybersecurity activities at their highest level.”[10] The five Functions are: (1) Identify,[11] (2) Protect,[12] (3) Detect,[13] (4) Respond,[14] and (5) Recover.[15] NIST explains that these five high-level Functions “provide a high-level, strategic view of the lifecycle of an organization’s management of cybersecurity risk”[16] and will provide “a concise way for senior executives and others to distill the fundamental concepts of cybersecurity risk so that they can assess how identified risks are managed, and how their organization stacks up at a high level against existing cybersecurity standards, guidelines, and practices.”[17]

For each of the five Functions, the Framework Core identifies underlying key “Categories” and “Subcategories” of cybersecurity outcomes, and then matches those outcomes with “Informative References” that will assist organizations in achieving the outcomes, such as existing cybersecurity standards, guidelines, and practices. By way of example, Categories within the “Protect” Function include Access Control, Awareness and Training, Data Security, Information Protection Processes and Procedures, and Protective Technology.[18] Subcategories under the “Access Control” Category within the Protect Function include (but are not limited to) “[i]dentities and credentials are managed for authorized devices and users” and “[n]etwork integrity is protected, incorporating network segregation where appropriate.”[19] “Informative References” for “[i]dentities and credentials are managed for authorized devices and users” include the following:

  • CCS CSC 16
  • COBIT 5 DSS05.04, DSS06.03
  • ISA 62443-2-1:2009 4.3.3.5.1
  • ISA 62443-3-3:2013 SR 1.1, SR 1.2, SR 1.3, SR 1.4, SR 1.5, SR 1.7, SR 1.8, SR 1.9
  • ISO/IEC 27001:2013 A.9.2.1, A.9.2.2, A.9.2.4, A.9.3.1, A.9.4.2, A.9.4.3
  • NIST SP 800-53 Rev. 4 AC-2, IA Family[20]

To view Figure 1 (Framework Core Structure) from the Framework depicts the Framework Core, click here.

NIST explains that the Core “presents industry standards, guidelines, and practices in a manner that allows for communication of cybersecurity activities and outcomes across the organization from the executive level to the implementation/operations level.”[21]

Implementation Tiers
The Framework Implementation Tiers describe the degree to which an organization’s cybersecurity risk management practices exhibit the characteristics defined in the Framework. The Tiers range from Partial (Tier 1) to Adaptive (Tier 4) and describe an increasing degree of rigor and sophistication in cybersecurity risk management practices and “the extent to which cybersecurity risk management is informed by business needs and is integrated into an organization’s overall risk management practices.” [22] By way of example, considering the risk management aspect, at Tier 1 “[o]rganizational cybersecurity risk management practices are not formalized, and risk is managed in an ad hoc and sometimes reactive manner.”[23] At Tier 2, “[r]isk management practices are approved by management but may not be established as organizational-wide policy.”[24] At Tier 3, “[t]he organization’s risk management practices are formally approved and expressed as policy” and “[o]rganizational cybersecurity practices are regularly updated based on the application of risk management processes to changes in business/mission requirements and a changing threat and technology landscape.”[25] At Tier 4, “[t]he organization adapts its cybersecurity practices based on lessons learned and predictive indicators derived from previous and current cybersecurity activities” and “[t]hrough a process of continuous improvement incorporating advanced cybersecurity technologies and practices, the organization actively adapts to a changing cybersecurity landscape and responds to evolving and sophisticated threats in a timely manner.”[26]

Profile
In essence, the Framework Profile assists organizations to progress from a current level of cybersecurity sophistication to a target improved state that meets the organization’s business needs. As stated by NIST, a Profile is used to “identify opportunities for improving cybersecurity posture by comparing a “Current” Profile (the “as is” state) with a “Target” Profile (the “to be” state).” [27] Comparison of Profiles (e.g., the Current Profile and Target Profile) may reveal gaps to be addressed to meet cybersecurity risk management objectives.  NIST states that the Framework Profile “can be characterized as the alignment of standards, guidelines, and practices to the Framework Core in a particular implementation scenario.”[28]

Framework Implementation
The Framework is voluntary—at least for now.  NIST also has explained that the Framework “complements, and does not replace, an organization’s risk management process and cybersecurity program.”[29] Organizations can use the Framework as a reference to establish a cybersecurity program, or leverage the Framework to “identify opportunities to strengthen and communicate its management of cybersecurity risk while aligning with industry practices.”[30] The Framework recognizes that “[o]rganizations may choose to handle risk in different ways, including mitigating the risk, transferring the risk, avoiding the risk, or accepting the risk, depending on the potential impact to the delivery of critical services.”[31]

Importantly, the Framework can be used as a means to communicate an organization’s required cybersecurity standards to business partners. As stated by NIST, “[t]he Framework provides a common language to communicate requirements among interdependent stakeholders responsible for the delivery of essential critical infrastructure services.,” such as, for example, the utilization of a “Target” Profile “express cybersecurity risk management requirements to an external service provider (e.g., a cloud provider to which it is exporting data).”[32] This is significant, because the cybersecurity shortcomings of “cloud” and other providers can have a profound impact on supply chains. As noted by NIST in the Roadmap:

All organizations are part of, and dependent upon, product and service supply chains. Supply chain risk is an essential part of the risk landscape that should be included in organizational risk management programs. Although many organizations have robust internal risk management processes, supply chain criticality and dependency analysis, collaboration, information sharing, and trust mechanisms remain a challenge. Organizations can struggle to identify their risks and prioritize their actions—leaving the weakest links susceptible to penetration and disruption. Supply chain risk management, especially product and service integrity, is an emerging discipline characterized by diverse perspectives, disparate bodies of knowledge, and fragmented standards and best practices.[33]

Incentive—and Cybersecurity Insurance
As of yet unspecified governmental incentives will be offered to organizations that adopt the Framework.  The Executive Order directs the Secretary of Homeland Security, in coordination with sector-specific agencies, to “establish a voluntary program to support the adoption of the Framework by owners and operators of critical infrastructure and any other interested entities,” called the “Program,” and to “coordinate establishment of a set of incentives designed to promote participation in the Program.”[34]

On August 6, 2013, the White House previewed a list of possible incentives, including “Cybersecurity Insurance” at the top of the list.[35] If Cybersecurity Insurance is adopted as an incentive, organizations that participate in the Program may, for example, enjoy more streamlined underwriting and reduced cyber insurance premiums. As stated by Michael Daniel, Special Assistant to the President and Cybersecurity Coordinator, agencies have “suggested that the insurance industry be engaged when developing the standards, procedures, and other measures that comprise the Framework and the Program” and that “[t]he goal of this collaboration would be to build underwriting practices that promote the adoption of cyber risk-reducing measures and risk-based pricing and foster a competitive cyber insurance market.”[36] Mr. Daniel states that NIST “is taking steps to engage the insurance industry in further discussion on the Framework.”[37]

The placement of “Cybersecurity Insurance” at the top of a list of possible incentives underscores the important role that insurance can play in an organization’s overall strategy to manage and mitigate cybersecurity risk, including supply chain disruption.[38] Adam Sedgewick, Senior Information Technology Policy Advisor at NIST, stated that NIST views “the insurance industry as a major stakeholder [in] helping organizations manage their cyber risk.”[39]  All of this is consistent with the SEC’s guidance on cybersecurity disclosures under the federal securities laws, which advises that “appropriate disclosures may include,” among other things, a “[d]escription of relevant insurance coverage” for cybersecurity risks.[40]

Going Forward
The Framework is a “living document,” which states that it “will continue to be updated and improved as industry provides feedback on implementation.” [41]  As the Framework is put into practice, lessons learned will be integrated into future versions to ensure it is “meeting the needs of critical infrastructure owners and operators in a dynamic and challenging environment of new threats, risks, and solutions.”[42] NIST will receive and consider comments about the Framework informally until it issues a formal notice of revision to version 1.0, at which point it will specify a focus for comments and specific deadlines that will allow it to develop and publish proposed revisions. In addition, NIST intends to hold at least one workshop within the next six months to provide a forum for stakeholders to share experiences in using the Framework, and will hold one or more workshops and focused meetings on specific areas for development, alignment, and collaboration. Therefore, organizations will continue to have the opportunity to potentially shape the final Framework.

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Notes:
[1] The Cybersecurity Framework is available at http://www.nist.gov/cyberframework/upload/cybersecurity-framework-021214.pdf. NIST developed the Framework based on information gathered over the past year, including a Request for Information published in the Federal Register and a series of four open public workshops held at various locations throughout the United States. See Roberta Anderson, NIST Unveils Preliminary Cybersecurity Framework, K&L Gates Cybersecurity Alert (Nov. 25. 2013), available at http://www.klgates.com/nist-unveils-preliminary-cybersecurity-framework-11-22-2013/

[3] 78 Fed. Reg. 11737 (2013). The Executive Order is available at http://www.gpo.gov/fdsys/pkg/FR-2013-02-19/pdf/2013-03915.pdf.

[4] Executive Order, Section 7(a).

[5] “Critical infrastructure” organizations include those in the chemical, communications, critical manufacturing, defense, financial services, energy, healthcare, and information technology sectors, among others. The Presidential Policy Directive/PPD 21, Critical Infrastructure Security and Resilience, (Feb. 12, 2013), available at http://www.fas.org/irp/offdocs/ppd/index.html (reference “PPD 21”), identifies 16 critical infrastructure sectors. 

[6] Framework, at 4.

[7] Id. at 2.

[8] NIST Releases Cybersecurity Framework Version 1.0 (Feb. 12, 2014), available at http://www.nist.gov/itl/csd/launch-cybersecurity-framework-021214.cfm.

[9] Id.

[10] Framework, at 7.

[11] This is to “[d]evelop the organizational understanding to manage cybersecurity risk to systems, assets, data, and capabilities.” Id. at 8. 

[12] This is to “[d]evelop and implement the appropriate safeguards to ensure delivery of critical infrastructure services.” Id.

[13] This is to “[d]evelop and implement the appropriate activities to identify the occurrence of a cybersecurity event.” Id.

[14] This is to “[d]evelop a and implement the appropriate activities to take action regarding a detected cybersecurity event.” Id.

[15] This is to “[d]evelop and implement the appropriate activities to maintain plans for resilience and to restore any capabilities or services that were impaired due to a cybersecurity event.” Id. at 9.

[16] Id. at 4.

[17] Id. at 13.

[18] Id.at 19 (Appendix A).

[19] Id.at 23-24 (Appendix A).

[20] Id.at 23 (Appendix A).  Additional supporting material relating to the Framework can be found on the NIST website at http://www.nist.gov/cyberframework/.

[21] Id.at 4.

[22] Id. at 9.

[23] Id. at 10.

[24] Id.

[25] Id.

26] Id. at 11.

[27] Id.

[28] Id. at 5.

[29] Id. at 4.

[30] Id.

[31] Id. at 5.

[32] Id. at 12.

[33] Roadmapat 8.

[34] Executive Order, Section 8(a, d).

[35] Michael Daniel, Incentives to Support Adoption of the Cybersecurity Framework, The White House Blog (Aug. 6, 2013), available at http://www.whitehouse.gov/blog/2013/08/06/incentives-support-adoption-cybersecurity-framework.

[36] Id. Other potentially significant incentives include leveraging federal grant programs, limitations on liability, including “reduced tort liability, limited indemnity, higher burdens of proof, or the creation of a Federal legal privilege that preempts State disclosure requirements,” and optional public recognition for participants in the Program and their vendors.  Id.

[37] Id.

[38] See Roberta D. Anderson, Insurance Coverage for Cyber Attacks, The Insurance Coverage Law Bulletin, Vol. 12, Nos. 4 & 5 (May-June 2013).

[39] See Janet Aschkenasy, NIST to engage insurance as tool to manage cyber risk, Advisen (Oct 28, 2013 ) (quoting Mr. Sedgewick).

[40] SEC Division of Corporation Finance, Cybersecurity, CF Disclosure Guidance: Topic No. 2 (Oct. 13, 2011), available at http://www.sec.gov/divisions/corpfin/guidance/cfguidance-topic2.htm

[41] Framework, at 2.

[42] Id.