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types of risk in information security Posts

quarta-feira, 9 dezembro 2020

This is important to note, as this will assist you in explaining your risk definition to other people reviewing your assessment. Information security management means “keeping the business risks associated with information systems under control within an enterprise.”, The information security risk is defined as “the potential that a given threat will exploit vulnerabilities of an asset or group of assets and thereby cause harm to the organization.”. Security risk is the potential for losses due to a physical or information security incident. Although initial NIST guidance on risk management published prior to FISMA’s enactment emphasized addressing risk at the individual information system level [4], the NIST Risk Management Framework and guidance on managing risk in Special Publication 800-39 now position information security risk as an integral component of enterprise risk management practiced at organization, mission and business, and information system tiers, as illustrated in Figure 13.1. Of course it does. Employees 1. Impact ratings significantly influence overall risk level determinations and can—depending on internal and external policies, regulatory mandates, and other drivers—produce specific security requirements that agencies and system owners must satisfy through the effective implementation of security controls. You can find more advice on how to assess your information security risks by reading our free whitepaper: 5 Critical Steps to Successful ISO 27001 Risk Assessments. In addition, senior executives who often possess little knowledge of technology and/or a concern for security (see the section “Business Practices and Organizational Culture”) can make difficult demands. Social interaction 2. Risk can be reduced by applying security measures; it can be shared, by outsourcing or by insuring; it can be avoided; or it can be accepted, in the sense that the organization accepts the likely impact of a security incident. The value high can be interpreted to mean that it is easy to exploit the vulnerability and there is little or no protection in place. Information Security Risk Assessment Toolkit details a methodology that adopts the best parts of some established frameworks and teaches you how to use the information that is available (or not) to pull together an IT Security Risk Assessment that will allow you to identify High Risk areas. Of even more interest to management is the analysis of the investment opportunity costs, that is, its comparison to other capital investment options.12 However, expressing risk in monetary terms is not always possible or desirable, since harm to some kinds of assets (human life) cannot (and should not) be assessed in monetary terms. To begin with, we might ask the following questionsD: Threat Categorization What can happen to your information assets? Samantha, the Computer Security Manager, and her team, Jonah and Tracey, had packed up their offices early on Friday. The likelihood of deliberate threats depends on the motivation, knowledge, capacity, and resources available to possible attackers and the attractiveness of assets to sophisticated attacks. Risk analysis is a necessary prerequisite for subsequently treating risk. Definitely not the first day Jane was expecting. For example, it is easy to say to someone that they need to identify assets and threats, but how do you actually go about doing this in an organization? In practice, qualitative analysis is often used first to obtain a general indication of the level of risk and to reveal the major risks. Jane excelled in her position, and came to the attention of a large healthcare organization after one of the auditors of ACME Financials mentioned her to the CIO at the healthcare organization. Risk is the primary input to organizational risk management, providing the basic unit of analysis for risk assessment and monitoring and the core information used to determine appropriate risk responses and any needed strategic or tactical adjustments to risk management strategy [21]. For others, it could be a possible inability to protect our patient’s personal information. While positive or negative impacts are theoretically possible, even from a single event, risk management tends to focus only on adverse impacts, driven in part by federal standards on categorizing information systems according to risk levels defined in terms of adverse impact. The primary means of mitigating information security-related risk is through the selection, implementation, maintenance, and continuous monitoring of preventive, detective, and corrective security controls to protect information assets from compromise or to limit the damage to the organization should a compromise occur. Vulnerability is “a weakness of an asset or group of assets that can be exploited by one or more threats. These considerations should be reflected in the asset values. We have talked about all of this before. Indirect impact may result because financial resources needed to replace or repair an asset would have been used elsewhere (opportunity cost) or from the cost of interrupted operations or due to potential misuse of information obtained through a security breach or because of violation of statutory or regulatory obligations or of ethical codes of conduct.13. An IT department that has not embraced compliance with IT standards contributes to the information security risk profile. For the example in Figure 1.6, the full risk statement is: Accidental loss or theft of unencrypted backup tapes could lead to the disclosure of sensitive data. The likelihood of human error (one of the most common accidental threats) and equipment malfunction should also be estimated. In information security, risk revolves around three important concepts: threats, vulnerabilities and impact (see Figure 1.4). There is a risk that corrupt property developers might gain access to the personal details of members of GANT and take severe action against them or their property. Information technology or IT risk is basically any threat to your business data, critical systems and business processes. Whoa! This likelihood can be calculated if the factors affecting it are analyzed. Risk can be reduced by applying security measures; it can be shared, by outsourcing or by insuring; it can be avoided; or it can be accepted, in the sense that the organization accepts the likely impact of a security incident. What follows is a brief description of the major types of security assessment, along with what differentiates them from commonly confused cousins. security breaches - includes physical break-ins as well as online intrusion staff dishonesty - theft of data or sensitive information, such as customer details. The CIA Triad of Information Security Information security risk overlaps with many other types of risk in terms of the kinds of impact that might result from the occurrence of a security-related incident. Information security represents one way to reduce risk, and in the broader context of risk management, information security management is concerned with reducing information system-related risk to a level acceptable to the organization. Organizations identify, assess, and respond to risk using the discipline of risk management. The consequences of the occurrence of a security incident are a function of the likely impact that the incident will have to the organization as a result of the harm that the organization assets will sustain. For example, we are able to compute the probability of our data being stolen as a function of the probability an intruder will attempt to intrude into our system and the probability that he will succeed. Also the organization’s geographical location will affect the possibility of extreme weather conditions. What is important here is that the interpretation of the levels be consistent throughout the organization and clearly convey the differences between the levels to those responsible for providing input to the threat valuation process. Since it was her first day, she really didnt want to ruffle any feathers by minimizing or highlighting specific risks since she didn’t feel like she knew enough about the organizations operating environment to make that call. On the other hand, the likelihood of accidental threats can be estimated using statistics and experience.

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