![]() Phase 3: Develop Security Strategy and Plans – During this part of the evaluation, the analysis team identifies risks to the organization’s critical assets and decides what to do about them.The team then determines the extent to which each class of component is resistant to network attacks. The analysis team examines network access paths, identifying classes of information technology components related to each critical asset. Phase 2: Identify Infrastructure Vulnerabilities – This is an evaluation of the information infrastructure.Finally, it identifies threats to each critical asset, creating a threat profile for that asset. The team then selects those assets that are most important to the organization (critical assets) and describes security requirements for each critical asset. The analysis team determines what is important to the organization (information-related assets) and what is currently being done to protect those assets. Phase 1: Build Asset-Based Threat Profiles – This is an organizational evaluation.OCTAVE is organized around these three basic aspects enabling organizational personnel to assemble a comprehensive picture of the organization’s information security needs. Effectively communicate key security information.Focus on protecting key information assets.Make the best decisions based on their unique risks.Direct and manage information security risk assessments for themselves.It is designed to allow an organization to: Unlike most other risk assessment methods the OCTAVE approach is driven by operational risk and security practices and not technology. It can be tailored for most organizations. ![]() The team draws on the knowledge of many employees to define the current state of security, identify risks to critical assets, and set a security strategy. A small team of people from the operational (or business) units and the IT department work together to address the security needs of the organization. OCTAVE is a flexible and self-directed risk assessment methodology. Two versions exist: OCTAVE-S, a simplified methodology for smaller organizations that have flat hierarchical structures, and OCTAVE Allegro, a more comprehensive version for large organizations or those with multilevel structures. The framework has gone through several evolutionary phases since that time, but the basic principles and goals have remained the same. OCTAVE was developed in 2001 at Carnegie Mellon University (CMU), for the United States Department of Defense. With this understanding, the organization can design and implement a protection strategy to reduce the overall risk exposure of its information assets. By putting together the information assets, threats, and vulnerabilities, the organization can begin to understand what information is at risk. It defines a comprehensive evaluation method that allows an organization to identify the information assets that are important to the mission of the organization, the threats to those assets, and the vulnerabilities that may expose those assets to the threats. The Operationally Critical Threat, Asset, and Vulnerability Evaluation (OCTAVE) is a framework for identifying and managing information security risks.
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