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Information technology risk, IT risk, IT-related risk, or cyber risk is any risk relating to information technology. [1] While information has long been appreciated as a valuable and important asset, the rise of the knowledge economy and the Digital Revolution has led to organizations becoming increasingly dependent on information, information processing and especially IT. Various events or incidents that compromise IT in some way can therefore cause adverse impacts on the organization's business processes or mission, ranging from inconsequential to catastrophic in scale.
Assessing the probability or likelihood of various types of event/incident with their predicted impacts or consequences, should they occur, is a common way to assess and measure IT risks. [2] Alternative methods of measuring IT risk typically involve assessing other contributory factors such as the threats, vulnerabilities, exposures, and asset values. [3] [4]
IT risk: the potential that a given threat will exploit vulnerabilities of an asset or group of assets and thereby cause harm to the organization. It is measured in terms of a combination of the probability of occurrence of an event and its consequence. [5]
The Committee on National Security Systems of United States of America defined risk in different documents:
National Information Assurance Training and Education Center defines risk in the IT field as: [8]
Many NIST publications define risk in IT context in different publications: FISMApedia [9] term [10] provide a list. Between them:
IT risk is the probable frequency and probable magnitude of future loss. [13]
ISACA published the Risk IT Framework in order to provide an end-to-end, comprehensive view of all risks related to the use of IT. There, [14] IT risk is defined as:
According to Risk IT, [14] IT risk has a broader meaning: it encompasses not just only the negative impact of operations and service delivery which can bring destruction or reduction of the value of the organization, but also the benefit\value enabling risk associated to missing opportunities to use technology to enable or enhance business or the IT project management for aspects like overspending or late delivery with adverse business impact
Measuring IT risk (or cyber risk) can occur at many levels. At a business level, the risks are managed categorically. Front line IT departments and NOC's tend to measure more discrete, individual risks. Managing the nexus between them is a key role for modern CISO's.
When measuring risk of any kind, selecting the correct equation for a given threat, asset, and available data is an important step. Doing so is subject unto itself, but there are common components of risk equations that are helpful to understand.
There are four fundamental forces involved in risk management, which also apply to cybersecurity. They are assets, impact, threats, and likelihood. You have internal knowledge of and a fair amount of control over assets, which are tangible and intangible things that have value. You also have some control over impact, which refers to loss of, or damage to, an asset. However, threats that represent adversaries and their methods of attack are external to your control. Likelihood is the wild card in the bunch. Likelihoods determine if and when a threat will materialize, succeed, and do damage. While never fully under your control, likelihoods can be shaped and influenced to manage the risk. [16]
Mathematically, the forces can be represented in a formula such as: where p() is the likelihood that a Threat will materialize/succeed against an Asset, and d() is the likelihood of various levels of damage that may occur. [17]
The field of IT risk management has spawned a number of terms and techniques which are unique to the industry. Some industry terms have yet to be reconciled. For example, the term vulnerability is often used interchangeably with likelihood of occurrence, which can be problematic. Often encountered IT risk management terms and techniques include:
The risk R is the product of the likelihood L of a security incident occurring times the impact I that will be incurred to the organization due to the incident, that is: [22]
The likelihood of a security incident occurrence is a function of the likelihood that a threat appears and the likelihood that the threat can successfully exploit the relevant system vulnerabilities.
The consequence of the occurrence of a security incident are a function of likely impact that the incident will have on the organization as a result of the harm the organization assets will sustain. Harm is related to the value of the assets to the organization; the same asset can have different values to different organizations.
So R can be function of four factors:
If numerical values (money for impact and probabilities for the other factors), the risk can be expressed in monetary terms and compared to the cost of countermeasures and the residual risk after applying the security control. It is not always practical to express this values, so in the first step of risk evaluation, risk are graded dimensionless in three or five steps scales.
OWASP proposes a practical risk measurement guideline [22] based on:
Overall Risk Severity | ||||
---|---|---|---|---|
Impact | HIGH | Medium | High | Critical |
MEDIUM | Low | Medium | High | |
LOW | None | Low | Medium | |
LOW | MEDIUM | HIGH | ||
Likelihood |
An IT risk management system (ITRMS) is a component of a broader enterprise risk management (ERM) system. [23] ITRMS are also integrated into broader information security management systems (ISMS). The continuous update and maintenance of an ISMS is in turn part of an organisation's systematic approach for identifying, assessing, and managing information security risks. [24] The Certified Information Systems Auditor Review Manual 2006 by ISACA provides this definition of risk management: "Risk management is the process of identifying vulnerabilities and threats to the information resources used by an organization in achieving business objectives, and deciding what countermeasures, if any, to take in reducing risk to an acceptable level, based on the value of the information resource to the organization." [25] The NIST Cybersecurity Framework encourages organizations to manage IT risk as part the Identify (ID) function: [26] [27]
Risk Assessment (ID.RA): The organization understands the cybersecurity risk to organizational operations (including mission, functions, image, or reputation), organizational assets, and individuals.
Risk Management Strategy (ID.RM): The organization’s priorities, constraints, risk tolerances, and assumptions are established and used to support operational risk decisions.
In the following a brief description of applicable rules organized by source. [28]
OECD issued the following:
The European Union issued the following, divided by topic:
United States issued the following, divided by topic:
As legislation evolves, there has been increased focus to require 'reasonable security' for information management. CCPA states that "manufacturers of connected devices to equip the device with reasonable security." [32] New York's SHIELD Act requires that organizations that manage NY residents' information “develop, implement and maintain reasonable safeguards to protect the security, confidentiality and integrity of the private information including, but not limited to, disposal of data.” This concept will influence how businesses manage their risk management plan as compliance requirements develop.
The list is chiefly based on: [28]
Business continuity may be defined as "the capability of an organization to continue the delivery of products or services at pre-defined acceptable levels following a disruptive incident", and business continuity planning is the process of creating systems of prevention and recovery to deal with potential threats to a company. In addition to prevention, the goal is to enable ongoing operations before and during execution of disaster recovery. Business continuity is the intended outcome of proper execution of both business continuity planning and disaster recovery.
Identity and access management, sometimes also referred to as just Identity management (IdM), is a framework of policies and technologies to ensure that the right users have the appropriate access to technology resources. IAM systems fall under the overarching umbrellas of IT security and data management. Identity and access management systems not only identify, authenticate, and control access for individuals who will be utilizing IT resources but also the hardware and applications employees need to access.
Information security standards are techniques generally outlined in published materials that attempt to protect a user's or organization's cyber environment. This environment includes users themselves, networks, devices, all software, processes, information in storage or transit, applications, services, and systems that can be connected directly or indirectly to networks.
Information assurance (IA) is the practice of assuring information and managing risks related to the use, processing, storage, and transmission of information. Information assurance includes protection of the integrity, availability, authenticity, non-repudiation and confidentiality of user data. IA encompasses both digital protections and physical techniques. These methods apply to data in transit, both physical and electronic forms, as well as data at rest. IA is best thought of as a superset of information security, and as the business outcome of information risk management.
Security controls or security measures are safeguards or countermeasures to avoid, detect, counteract, or minimize security risks to physical property, information, computer systems, or other assets. In the field of information security, such controls protect the confidentiality, integrity and availability of information.
Information security management (ISM) defines and manages controls that an organization needs to implement to ensure that it is sensibly protecting the confidentiality, availability, and integrity of assets from threats and vulnerabilities. The core of ISM includes information risk management, a process that involves the assessment of the risks an organization must deal with in the management and protection of assets, as well as the dissemination of the risks to all appropriate stakeholders. This requires proper asset identification and valuation steps, including evaluating the value of confidentiality, integrity, availability, and replacement of assets. As part of information security management, an organization may implement an information security management system and other best practices found in the ISO/IEC 27001, ISO/IEC 27002, and ISO/IEC 27035 standards on information security.
ISO/IEC 27002 is an information security standard published by the International Organization for Standardization (ISO) and by the International Electrotechnical Commission (IEC), titled Information security, cybersecurity and privacy protection — Information security controls.
The ISO/IEC 27000 family comprises information security standards published jointly by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC).
MEHARI is a free, open-source information risk analysis assessment and risk management method, for the use of information security professionals.
ISO/IEC 27005 "Information technology — Security techniques — Information security risk management" is an international standard published by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) providing good practice guidance on managing risks to information. It is a core part of the ISO/IEC 27000-series of standards, commonly known as ISO27k.
NIST Special Publication 800-53 is an information security standard that provides a catalog of privacy and security controls for information systems. Originally intended for U.S. federal agencies except those related to national security, since the 5th revision it is a standard for general usage. It is published by the National Institute of Standards and Technology, which is a non-regulatory agency of the United States Department of Commerce. NIST develops and issues standards, guidelines, and other publications to assist federal agencies in implementing the Federal Information Security Modernization Act of 2014 (FISMA) and to help with managing cost effective programs to protect their information and information systems.
Security information and event management (SIEM) is a field within computer security that combines security information management (SIM) and security event management (SEM) to enable real-time analysis of security alerts generated by applications and network hardware. SIEM systems are central to security operations centers (SOCs), where they are employed to detect, investigate, and respond to security incidents. SIEM technology collects and aggregates data from various systems, allowing organizations to meet compliance requirements while safeguarding against threats.
The Risk Management Framework (RMF) is a United States federal government guideline, standard, and process for managing risk to help secure information systems. The RMF was developed by the National Institute of Standards and Technology (NIST), and provides a structured process that integrates information security, privacy, and risk management activities into the system development life cycle. The RMF is an important aspect of a systems attainment of its Authority to Operate (ATO).
IT risk management is the application of risk management methods to information technology in order to manage IT risk. Various methodologies exist to manage IT risks, each involving specific processes and steps.
ISO/IEC JTC 1/SC 27 Information security, cybersecurity and privacy protection is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). ISO/IEC JTC 1/SC 27 develops International Standards, Technical Reports, and Technical Specifications within the field of information security. Standardization activity by this subcommittee includes general methods, management system requirements, techniques and guidelines to address information security, cybersecurity and privacy. Drafts of International Standards by ISO/IEC JTC 1 or any of its subcommittees are sent out to participating national standardization bodies for ballot, comments and contributions. Publication as an ISO/IEC International Standard requires approval by a minimum of 75% of the national bodies casting a vote. The international secretariat of ISO/IEC JTC 1/SC 27 is the Deutsches Institut für Normung (DIN) located in Germany.
ISO/IEC 27001 is an international standard to manage information security. The standard was originally published jointly by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) in 2005, revised in 2013, and again most recently in 2022. There are also numerous recognized national variants of the standard. It details requirements for establishing, implementing, maintaining and continually improving an information security management system (ISMS) – the aim of which is to help organizations make the information assets they hold more secure. Organizations that meet the standard's requirements can choose to be certified by an accredited certification body following successful completion of an audit. A SWOT analysis of the ISO/IEC 27001 certification process was conducted in 2020.
ISO/IEC 27040 is part of a growing family of International Standards published by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) in the area of security techniques; the standard is being developed by Subcommitee 27 (SC27) - IT Security techniques of the first Joint Technical Committee 1 of the ISO/IEC. A major element of SC27's program of work includes International Standards for information security management systems (ISMS), often referred to as the 'ISO/IEC 27000-series'.
Storage security is a specialty area of security that is concerned with securing data storage systems and ecosystems and the data that resides on these systems.
The NIST Cybersecurity Framework (CSF) is a set of voluntary guidelines designed to help organizations assess and improve their ability to prevent, detect, and respond to cybersecurity risks. Developed by the U.S. National Institute of Standards and Technology (NIST), the framework was initially published in 2014 for critical infrastructure sectors but has since been widely adopted across various industries, including government and private enterprises globally. The framework integrates existing standards, guidelines, and best practices to provide a structured approach to cybersecurity risk management.
Cybersecurity engineering is a tech discipline focused on the protection of systems, networks, and data from unauthorized access, cyberattacks, and other malicious activities. It applies engineering principles to the design, implementation, maintenance, and evaluation of secure systems, ensuring the integrity, confidentiality, and availability of information.