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The questions for ISO-IEC-27001-Lead-Implementer were last updated on May 2, 2025.
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Scenario 7: InfoSec is a multinational corporation headquartered in Boston, MA, which provides professional electronics, gaming, and entertainment services. After facing numerous information security incidents, InfoSec has decided to establish teams and implement measures to prevent potential incidents in the future
Emma, Bob. and Anna were hired as the new members of InfoSec's information security team, which consists of a security architecture team, an incident response team (IRT) and a forensics team Emma's job is to create information security plans, policies, protocols, and training to prepare InfoSec to respond to incidents effectively Emma and Bob would be full-time employees of InfoSec, whereas Anna was contracted as an external consultant.
Bob, a network expert, will deploy a screened subnet network architecture This architecture will isolate the demilitarized zone (OMZ) to which hosted public services are attached and InfoSec's publicly accessible resources from their private network Thus, InfoSec will be able to block potential attackers from causing unwanted events inside the company's network. Bob is also responsible for ensuring that a thorough evaluation of the nature of an unexpected event is conducted, including the details on how the event happened and what or whom it might affect.
Anna will create records of the data, reviews, analysis, and reports in order to keep evidence for the purpose of disciplinary and legal action, and use them to prevent future incidents. To do the work accordingly, she should be aware of the company's information security incident management policy beforehand
Among others, this policy specifies the type of records to be created, the place where they should be kept, and the format and content that specific record types should have.
Why did InfoSec establish an IRT? Refer to scenario 7.
Based on his tasks, Bob is part of the incident response team (IRT) of InfoSec. According to the ISO/IEC 27001:2022 standard, an IRT is a group of individuals who are responsible for responding to information security incidents in a timely and effective manner. The IRT should have the authority, skills, and resources to perform the following activities:
Identify and analyze information security incidents and their impact
Contain, eradicate, and recover from information security incidents
Communicate with relevant stakeholders and authorities
Document and report on information security incidents and their outcomes
Review and improve the information security incident management process and controls
Bob's job is to deploy a network architecture that can prevent potential attackers from accessing InfoSec's private network, and to conduct a thorough evaluation of the nature and impact of any unexpected events that might occur. These tasks are aligned with the objectives and responsibilities of an IRT, as defined by the ISO/IEC 27001:2022 standard.
ISO/IEC 27001:2022, Information technology --- Security techniques --- Information security management systems --- Requirements, Clause 10.2, Information security incident management
ISO/IEC 27035-1:2023, Information technology --- Information security incident management --- Part 1: Principles of incident management
ISO/IEC 27035-2:2023, Information technology --- Information security incident management --- Part 2: Guidelines to plan and prepare for incident response
PECB, ISO/IEC 27001 Lead Implementer Course, Module 10, Information security incident management
TradeB communicated the information security processes and procedures to employees. Which principle of efficient communication strategy did they use?
Scenario 7: Incident Response at Texas H&H Inc.
Once they made sure that the attackers do not have access in their system, the security administrators decided to proceed with the forensic analysis. They concluded that their access security system was not designed tor threat detection, including the detection of malicious files which could be the cause of possible future attacks.
Based on these findings. Texas H$H inc, decided to modify its access security system to avoid future incidents and integrate an incident management policy in their Information security policy that could serve as guidance for employees on how to respond to similar incidents.
Based on the scenario above, answer the following question:
Based on scenario 7. what else should Texas H&H Inc. do when responding to the incident?
What should an organization allocate to ensure the maintenance and improvement of the information security management system?
According to ISO/IEC 27001:2022, clause 10.2.2, the organization shall define and apply an information security incident management process that includes the following activities:
reporting information security events and weaknesses;
assessing information security events and classifying them as information security incidents;
responding to information security incidents according to their classification;
learning from information security incidents, including identifying causes, taking corrective actions and preventive actions, and communicating the results and actions taken;
collecting evidence, where applicable.
The standard does not specify who should perform these activities, as long as they are done in a consistent and effective manner. Therefore, the organization may choose to conduct forensic investigation internally or by using external consultants, depending on its needs, resources, and capabilities. However, the organization should ensure that the external consultants are competent, trustworthy, and comply with the organization's policies and procedures.
Scenario 2: Beauty is a cosmetics company that has recently switched to an e-commerce model, leaving the traditional retail. The top management has decided to build their own custom platform in-house and outsource the payment process to an external provider operating online payments systems that support online money transfers.
Due to this transformation of the business model, a number of security controls were implemented based on the identified threats and vulnerabilities associated to critical assets. To protect customers' information. Beauty's employees had to sign a confidentiality agreement. In addition, the company reviewed all user access rights so that only authorized personnel can have access to sensitive files and drafted a new segregation of duties chart.
However, the transition was difficult for the IT team, who had to deal with a security incident not long after transitioning to the e commerce model. After investigating the incident, the team concluded that due to the out-of-date anti-malware software, an attacker gamed access to their files and exposed customers' information, including their names and home addresses.
The IT team decided to stop using the old anti-malware software and install a new one which would automatically remove malicious code in case of similar incidents. The new software was installed in every workstation within the company. After installing the new software, the team updated it with the latest malware definitions and enabled the automatic update feature to keep it up to date at all times. Additionally, they established an authentication process that requires a user identification and password when accessing sensitive information.
In addition, Beauty conducted a number of information security awareness sessions for the IT team and other employees that have access to confidential information in order to raise awareness on the importance of system and network security.
Based on the scenario above, answer the following question:
Which situation described in scenario 2 Indicates service unavailability?
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