EMC D-SF-A-24 Dumps

Verified Answer:The type of attack that enables an attacker to read and modify the transmitted data packets and send their own requests to the client is:

C. TCP hijacking

TCP Hijacking Definition:TCP hijacking is a type of cyber attack where an attacker takes control of a communication session between two entities12.

Attack Mechanism:The attacker intercepts and manipulates data packets being sent over the network, allowing them to read, modify, and insert their own packets into the communication stream1.

Impact on Security:This attack can lead to unauthorized access to sensitive data and systems, and it can be used to impersonate the victim, resulting in data breaches and other security incidents1.

Prevention Measures:Implementing security measures such as encryption, using secure protocols, and monitoring network traffic can help prevent TCP hijacking attacks1.

TCP hijacking is particularly relevant to cloud environments where misconfigurations can leave systems vulnerable. It is crucial forA .R.T.I.E.to ensure proper security configurations and adopt measures to protect against such attacks as part of their migration to the public cloud and overall cybersecurity strategy12.

Security Hardening Definition:Security hardening involves implementing measures to reduce vulnerabilities in applications and operating systems1.

Reducing Attack Surface:By updating and patching outdated applications and operating systems,A .R.T.I.E.can minimize the number of potential entry points for attackers1.

Preventing Cyberattacks:Hardening is a proactive measure to protect against potential cyberattacks by eliminating as many security risks as possible1.

Compliance with Best Practices:Security hardening aligns with industry best practices and regulatory requirements, which is essential forA .R.T.I.E.'s operations in the public cloud1.

Dell’s Recommendation:Dell’s Security Foundations Achievement emphasizes the importance of security hardening as a fundamental aspect of an organization’s cybersecurity strategy1.

Security hardening is crucial forA .R.T.I.E.because it directly contributes to the robustness of their cybersecurity posture, ensuring that their systems are less susceptible to attacks and breaches1.

Control Mechanism Selection:

ForA .R.T.I.E.'s scenario, where the concern is about sharing and protecting data off-premises and ensuring that data can be used in decision-making without exposing it to unauthorized access, the most suitable control mechanism would be:

A. Proactive control mechanism

Proactive control mechanisms are designed to prevent security incidents before they occur.They include measures such as strong authentication, encryption, and access controls, which align withA .R.T.I.E.'s requirements for secure migration to the public cloud and maintaining data confidentiality during decision-making processes1234.

Data Encryption:Encrypting data at rest and in transit ensures that even if data is intercepted or accessed by unauthorized individuals, it remains unreadable and secure2.

Access Control:Implementing robust access control measures, such as role-based access control (RBAC) and multi-factor authentication (MFA), restricts data access to authorized personnel only34.

Firewalls and Network Security:Deploying firewalls and other network security measures helps to protect the cloud environment from unauthorized access and potential breaches2.

Security Monitoring:Continuous monitoring of the cloud environment allows for the early detection of potential security threats and vulnerabilities2.

Security Patching and Upgrades:Regularly updating and patching systems ensures that security measures are up-to-date and can defend against the latest threats2.

These proactive controls are essential forA .R.T.I.E.as they provide a comprehensive approach to securing data in the public cloud, align with the Dell Security Foundations Achievement’s focus on security hardening, and support the Zero Trust model, which assumes no implicit trust and verifies each request as though it originates from an open network5.

Based on the Dell Security Foundations Achievement and the NIST Cybersecurity Framework (CSF), the core NIST CSF component functions can be matched with the descriptions as follows:

Identify:Cultivate the organizational understanding of cybersecurity risks.

Protect:Plan and implement appropriate safeguards.

Detect:Develop ways to identify cybersecurity breaches.

Respond:Quickly mitigate damage if a cybersecurity incident is detected.

Recover:Restore capabilities that were impaired due to a cyberattack12345.

Identify Function:Involves understanding the business context, the resources that support critical functions, and the related cybersecurity risks3.

Protect Function:Includes the appropriate safeguards to ensure delivery of critical infrastructure services4.

Detect Function:Defines the appropriate activities to identify the occurrence of a cybersecurity event4.

Respond Function:Includes the appropriate activities to take action regarding a detected cybersecurity event4.

Recover Function:Identifies appropriate activities to maintain plans for resilience and to restore any capabilities or services that were impaired due to a cybersecurity event4.

These functions are integral to the NIST CSF and provide a high-level strategic view of the lifecycle of an organization’s management of cybersecurity risk12345.The Dell Security Foundations Achievement documents would likely align with these functions, emphasizing their importance in a comprehensive cybersecurity strategy12.

A data breach occurs when confidential information is accessed or disclosed without authorization. In the scenario described, an employee unintentionally sent out a slide deckcontaining personal information of a colleague. This incident falls under the category of a data breach because it involves the exposure of personal data.

The Dell Security Foundations Achievement covers a broad range of topics, including the NIST Cybersecurity Framework, ransomware, and security hardening.It aims to validate knowledge on various risks and attack vectors, as well as the techniques and frameworks used to prevent and respond to possible attacks, focusing on people, process, and technology1.

In the context of the Dell Security Foundations Achievement, understanding the nature of different types of cyber threats is crucial. A data breach, as mentioned, is an incident where information is accessed without authorization. This differs from:

A ransomware attack (A), which involves malware that encrypts the victim’s files and demands a ransom for the decryption key.

An advanced persistent threat ©, which is a prolonged and targeted cyberattack in which an intruder gains access to a network and remains undetected for an extended period.

A supply chain attack (D), which occurs when a malicious party infiltrates a system through an outside partner or provider with access to the system and its data.

Therefore, based on the information provided and the context of the Dell Security Foundations Achievement, the correct answer is B. Data breach.

User Analytics:UEBA systems analyze user behavior to establish a baseline of normal activities and detect anomalies12.

Threat Detection:By monitoring for deviations from the baseline, UEBA can detect potential security threats, such as compromised accounts or insider threats12.

Data Analysis:UEBA solutions ingest and analyze large volumes of data from various sources within the organization to identify suspicious activities12.

Behavioral Analytics:UEBA uses behavioral analytics to understand how users typically interact with the organization’s systems and data12.

Machine Learning and Automation:Advanced machine learning algorithms and automation are employed to refine the analysis and improve the accuracy of anomaly detection over time12.

UEBA is essential forA .R.T.I.E.as it provides a comprehensive approach to security monitoring, which is critical given the diverse and dynamic nature of their user base and the complexity of their IT environment12.