ECCouncil Updated 212-89 Exam Questions and Answers by julian

An Intrusion Prevention System (IPS) device placed inline is best suited to block attacks on a network actively. Being inline allows the IPS to analyze and take action on the traffic as it passes through the device, effectively preventing malicious traffic from reaching its target. The IPS can detect and block a wide range of attacks in real-time by using various detection methods, such as signature-based detection, anomaly detection, and policy-based detection. Unlike Host-based Intrusion Prevention Systems (HIPS), web proxies, or load balancers, an inline IPS is specifically designed to inspect and act on incoming and outgoing network traffic to prevent attacks before they reach network devices or applications.

A negligent insider is an individual within an organization who, due to a lack of knowledge on security threats or in an attempt to increase workplace efficiency, inadvertently bypasses security procedures or makes errors that compromise security. This type of insider threat is not malicious in intent; rather, it stems from carelessness, oversight, or a lack of proper security training. Such insiders might click on phishing links, mishandle sensitive information, or use unsecured networks for work-related tasks, thereby exposing the organization to potential security breaches. This contrasts with compromised insiders (who are manipulated by external parties), professional insiders (who misuse their access for personal gain), and malicious insiders (who intentionally aim to harm the organization).

Cross-Site Scripting attacks occur when untrusted input is processed and rendered by an application without proper validation or encoding. ECIH web application security guidance identifies input validation and output encoding as the most effective primary defense against XSS.

Option B is correct because sanitizing and validating all user input ensures that malicious scripts are neutralized before being stored or rendered. This addresses the root cause of XSS vulnerabilities.

Option A is a detection control, not a prevention mechanism. Option C improves system security but does not prevent application-level XSS flaws. Option D addresses abuse and DoS scenarios, not script injection.

Therefore, focusing on input validation is the most effective proactive control against XSS, as emphasized in the ECIH curriculum.

The EC-Council Incident Handler (ECIH) curriculum emphasizes Identity and Access Management (IAM) as a foundational control in cloud security. In cloud environments, shared credentials and lack of role-based restrictions significantly increase the risk of misuse, unauthorized access, and privilege abuse.

The scenario clearly identifies two major violations: credential reuse across departments and absence of role-specific restrictions. ECIH highlights that cloud best practices require enforcing strict user access control using the Principle of Least Privilege (PoLP) and role-based access control (RBAC). Each user—including third-party contractors—must have unique credentials with clearly defined permissions aligned strictly with their job responsibilities.

Credential isolation ensures accountability and traceability, enabling effective logging, auditing, and forensic investigation. Without unique user tracking, organizations cannot accurately attribute actions, which weakens incident response and compliance efforts.

Option B (data anonymization) relates to data privacy but does not address access misuse. Option C (vulnerability scanning of mobile apps) addresses application security, not identity misuse. Option D (SSL encryption) protects data in transit but does not prevent unauthorized credential reuse or excessive access rights.

ECIH strongly recommends implementing multi-factor authentication (MFA), enforcing strong IAM policies, restricting third-party access, and continuously monitoring privileged accounts in cloud environments. Therefore, enforcement of strict user access control and credential isolation is the most appropriate preventive measure.