diacap to diarmf: manage information security risk

by Bruce Brown | 0 comment

Risk Management Framework is implemented throughout an organization.

NIST 800-39, Manage Information Security Risk, describes how to implement risk within t three layers (or tiers) of of an organization:

Tier 1: Organization level
Tier 2: Mission/Business Process level
Tier 3: Information System level

diarmf risk management of information security

Tier 1: Organization Level risk management
Tier one addresses security from the organizations perspective. The activities include the implementation of the first component of risk management, risk framing. Risk framing provides context of all the risk activities within an organization, which affects the risk activities of tier 1 & 2. The output of risk framing is Risk Management Strategy. In tier 1 the organization establishes and implements governance structure that are in compliance with laws, regulations and policies. Tier 1 activities include establishment of the Risk Executive Function, establishment of the risk management strategy and determination of the risk tolerance.

Tier 2: Mission/Business Process Level risk management

Tier 2 risk management activities include: 1) defining the mission/business processes to support the organization. 2) Prioritize the mission/business process with respect to the long term goals of the organization. 3) Define the type of information needed to successfully execute the mission/business processes, criticality/sensitivity of the information and the information flows both internal and external of the information.

Having a risk-aware process is an important part of tier 2. To be risk-aware senior leaders/executives need to know: 1) types of threat sources and threat events that could have an adverse affect the ability of the organizations 2) the potential adverse impacts on the organizational operations and assets, individuals, the Nation if confidentiality, integrity, availability is compromised 3) the organization�s resilience to such an attack that can be achieved with a given mission/business process

Tier 3: Information System risk management

From the information system perspective, tier 3 addresses the following tasks:
1) Categorization of the information system
2) Allocating the organizational security control
3) Selection, implementation, assessment, authorization, and ongoing

Chapter 3 focuses on the step to have a comprehensive risk management program. The tasks discussed include:
Risk Framing
Risk Assessing
Risk Response
Risk Monitoring


For more information go to: http://elamb.org/training-certification800-39-manage-information-security-risks/


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