In the context of information security, the principle of 'need-to-know' isone of the most important ones to consider. What does the principle of'need-to-know' implies? *Critical tasks can only be completed by at least two individuals, so that collusion isneeded to be able to commit fraud.Users should have access to only the information that is needed to perform theirtasks.Users should be assigned with a minimum level of access rights to perform theirtasks.O Users should be assigned only temporary access rights to perform their tasks.

In the context of information security, the principle of 'need-to-know' is one of the most important ones to consider. What does the principle of 'need-to-know' implies? * Critical tasks can only be completed by at least two individuals, so that collusion needed to be able to commit fraud. Users should have access to only the information that is needed to perform thei tasks. Users should be assigned with a minimum level of access rights to perform thei tasks. Users should be assigned only temporary access rights to perform their tasks.

In the context of information security, the principle of 'need-to-know' is one of the most important ones to consider. What does the principle of 'need-to-know' implies? * Critical tasks can only be completed by at least two individuals, so that collusion needed to be able to commit fraud. Users should have access to only the information that is needed to perform thei tasks. Users should be assigned with a minimum level of access rights to perform thei tasks. Users should be assigned only temporary access rights to perform their tasks.

Principles of Information Security (MindTap Course List)

6th Edition

ISBN:9781337102063

Author:Michael E. Whitman, Herbert J. Mattord

Publisher:Michael E. Whitman, Herbert J. Mattord

Chapter2: The Need For Security

Section: Chapter Questions

Problem 1E

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Suppose Charlie had installed key logger software on all company computer systems and had made a copy of Peter's encryption key. Suppose that Charlie had this done without policy authority and without anyone's knowledge, including Peter's. Would the use of such a tool be an ethical violation on Charlie's part? Is it illegal? Suppose that Charlie had implemented the key logger with the knowledge and approval of senior company executives, and that every employee had signed a release that acknowledged the company can record all information entered on the company systems. Two days after Peter's call, Charlie calls back to give Peter his key: "We got lucky and cracked it early." Charlie says this to preserve Peter's illusion of privacy. Is such a "little white lie" an ethical action on Charlie's part?
One possible approach to safeguarding data through the application of the "Principle of Confidentiality" is through the utilization of a "Cryptographic Technique." This technique involves the use of mathematical algorithms to encode and decode sensitive information, thereby rendering it unreadable to unauthorized parties. By employing such a technique, individuals and organizations can ensure that their data remains secure and protected from potential breaches or unauthorized access.
Do top-down and bottom up approaches to information security have any differences? There are several reasons why the top-down method is preferable than the bottom-up approach.
Authentication is a process to verify an identity of someone. Authentication can be classified by something known, something possessed by physical characteristic or even a result from an involuntary action. For example, a password can be used as something known by the user to prove their identity. Give THREE (3) password selecting strategies that you can apply to your users in your system to help them in creating a good password.
When implementing best security practices, it is vital to follow the five fundamental security principles: layering, limiting, diversity, obscurity, and simplicity. When granting access rights to a user account which principle do you think is the most important? A. Limiting: User should only grant access to minimal level of services needed to perform actions. B. Layering: User account needs to have multiple layers of authentication. C. Obscurity: User account should be hidden from other users. D. None of the principles are important.
Take into consideration the various types of access control mentioned below, and choose some example scenarios. This is an example. • Discretionary Access Control (DAC), • Mandatory Access Control (MAC), • Role-Based Access Control (RBAC), • Attribute-Based Access Control (ABAC), • Rule-Based Access Control (RBAC), • Risk-Adaptive Access Control (RAC), • Identity-Based Access Control (IBAC), • Organization-Based Access Control (OBAC), •
a. Intrusion detection is based on the assumption that the behavior of the intruder differs from that of a legitimate user in ways that can be quantified. Of course, we cannot expect that there will be a crisp, exact distinction between an attack by an intruder and the normal use of resources by an authorized user. This poses a challenge to the use of IDS. Briefly discus the challenges and propose a cure. b. Blockchain is a breakthrough technology that is expected to alter most industries in the coming years and it particularly touted so because of confidentiality, authentication and integrity that it offers which makes it independent, transparent and secure. Experts says that these important principles of security are achievable because blockchains employs hash functions and public key encryption. Briefly discuss how these cryptographic techniques offer confidentiality, authentication and integrity that gives blockchain its security.
One of the most basic concepts in the field of Information Security is the CIA Triad or CIA Triangle. This was mentioned briefly in Chapter 1 of your text. CIA stands for Confidentiality, Integrity, and Availability. Denial of Service (DoS) attacks challenge the "Availability" of a system or data. This could be temporary (e.g., a SYN Flood Attack that renders a web server unavailable during the attack) or permanent (e.g., the deletion or destruction of the data). The latter of these has become increasingly common in the case of "ransomware" which is malware that encrypts all of the data on an infected system and the administrator is notified that if they don't pay a ransom by a certain date that the key to decrypt the data will be permanently deleted. (NOTE: This is conspicuously absent from the books discussion on malware but is a MAJOR issue right now.) While the temporary attacks may be less destructive, they are often done against systems that generate a lot of money (such…
Multiple security layers must be used in order to protect the opponent from accessing crucial information as good design of security a. Modularity b. Layering c. Psychological acceptability d. Encapsulation
Consider an example of an incident where an information security breach orcompromise has occurred and answer the following question:Write down the example of an incident and use the same example to identify andexplain the information security concepts below. In your answer, use any threeconcepts in A – E to suggest how the incident can be prevented.A. Access.B. Asset.C. Attack.D. Exploit.E. Exposure.
1) Describe two distinct types of attack against password systems and the countermeasures against each of those attacks. 2) Describe two general "good practices in coding". For each of them explain why they are appropriate and give an example of what could go wrong if that practice is not followed. 3) A company has two departments, A and B, and has determined that it is appropriate to have two levels of sensitivity, in increasing order: 0 and 1. Draw a BLP lattice system to represent this scenario. Using examples referring to this lattice, explain the three BLP rules, 2 mandatory and 1 discretionary. 4) Explain what tailored attacks are. Give some specific examples in two different domains and explain how they perform relative to other attacks in those domains.
1) Describe two distinct types of attack against password systems and the countermeasures against each of those attacks. 2) Describe two general "good practices in coding". For each of them explain why they are appropriate and give an example of what could go wrong if that practice is not followed. 3) A company has two departments, A and B, and has determined that it is appropriate to have two levels of sensitivity, in increasing order: 0 and 1. Draw a BLP lattice system to represent this scenario. Using examples referring to this lattice, explain the three BLP rules, 2 mandatory and 1 discretionary. 4) Explain what tailored attacks are. Give some specific examples in two different domains and explain how they perform relative to other attacks in those domains. 5) Explain two outcomes an attacker may aim for with a Buffer overflow attack. Sketch how and why a Buffer overflow attack works. You do not need to write code but can if it helps you to explain. 6) Explain what a Trojan Horse…