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CISM Premium File: 1228 Questions & Answers

Last Update: Sep 15, 2026

CISM Training Course: 388 Video Lectures

CISM PDF Study Guide: 817 Pages

$79.99

CISM Bundle gives you unlimited access to "CISM" files. However, this does not replace the need for a .vce exam simulator. To download your .vce exam simulator click here

Isaca CISM Practice Test 55

Question 540

Customer records were exposed through a misconfigured link but the team has not established actual access. Which management response BEST addresses the stated risk or governance priority?

  1. Consult privacy and legal specialists and apply the applicable heightened notification rules.
  2. Provide authorized timely provisional reporting with uncertainty and follow-up commitments.
  3. Route reporting determination to empowered legal, privacy and business leadership.
  4. Determine accessible data, exposure period and access evidence before final impact assessment.

Explanation

Correct Answer

D:

Exposure and confirmed extraction are different facts that affect reporting. This directly meets the requirement to distinguish possible exposure from confirmed data access.

Incorrect Answers

A:

Sensitive populations and data categories may alter duties and impact. That action would account for special privacy breach obligations; it does not address the case's priority to distinguish possible exposure from confirmed data access.

B:

Notification deadlines cannot always await complete investigation. It is primarily relevant when the need is to meet breach notice deadlines under uncertainty, rather than to distinguish possible exposure from confirmed data access.

C:

Regulatory disclosures require informed authority beyond technical investigation. This would help assign proper privacy breach disclosure decisions; the scenario instead requires a decision to distinguish possible exposure from confirmed data access.

Question 541

A team assumes every threat-intelligence feed indicator is an active incident. Which management action BEST meets the stated requirement?

  1. Require relevant local telemetry and confidence evidence before case escalation.
  2. Create verified detection logic from observed behaviors and safely deploy with monitoring.
  3. Restore monitoring coverage and validate data freshness before declaring full assurance.
  4. Tune narrowly verified duplicates while preserving evidence and attack coverage.

Explanation

Correct Answer

A:

Indicators alone do not prove that an organization is compromised. This directly meets the requirement to validate intelligence-driven incident activation.

Incorrect Answers

B:

Confirmed incident evidence can strengthen coverage for emerging tactics. It is primarily relevant when the need is to improve detections from active attack evidence, rather than to validate intelligence-driven incident activation.

C:

Missing alerts may represent a blind spot rather than absence of malicious activity. This would help avoid false closure from missing security telemetry; the scenario instead requires a decision to validate intelligence-driven incident activation.

D:

Noise reduction should not suppress genuine escalation signals. That action would reduce incident alert noise without blind spots; it does not address the case's priority to validate intelligence-driven incident activation.

Question 542

A monitoring system reports a suspicious authentication pattern but analysts immediately declare a confirmed breach. Which decision is BEST supported by the business and security evidence?

  1. Reassess severity, preserve context and trigger appropriate escalation.
  2. Validate evidence, affected identities and plausible attack paths before final classification.
  3. Prioritize investigation by credible business impact, confidence and propagation risk.
  4. Correlate the indicator with relevant local evidence before escalating an incident.

Explanation

Correct Answer

B:

Triage distinguishes a detection signal from confirmed compromise. This directly meets the requirement to avoid premature breach declaration.

Incorrect Answers

A:

Triage priority must adapt when the attack scope and consequence grow. That action would elevate response after high-impact evidence; it does not address the case's priority to avoid premature breach declaration.

C:

Response effort should follow material exposure rather than first-in queue order. This would help triage competing security alerts by impact; the scenario instead requires a decision to avoid premature breach declaration.

D:

Threat intelligence is a lead, not proof of local compromise. That action would verify local relevance of threat indicators; it does not address the case's priority to avoid premature breach declaration.

Question 543

A crisis team learns that a planned countermeasure may destroy forensic evidence relevant to litigation. What is the MOST appropriate next action for the information security manager?

  1. Escalate to the designated incident command authority using approved BIA-based priorities.
  2. Confirm scope and seek authorized proportionate containment based on credible risk.
  3. Evaluate evidence preservation and legal requirements before action when containment permits.
  4. Communicate confirmed containment status and unresolved risks through the approved spokesperson.

Explanation

Correct Answer

C:

Incident decisions should protect legal interests without permitting uncontrolled damage. This directly meets the requirement to reconcile evidence preservation with response decisions.

Incorrect Answers

A:

Enterprise governance resolves competing business claims through agreed impact criteria. That action would arbitrate shared-service crisis recovery priorities; it does not address the case's priority to reconcile evidence preservation with response decisions.

B:

Broad disruptive action without evidence may create greater harm than the suspected threat. It is primarily relevant when the need is to avoid unjustified enterprise-wide containment, rather than to reconcile evidence preservation with response decisions.

D:

Crisis statements must avoid unsupported certainty while updating stakeholders. That action would report incident status honestly under pressure; it does not address the case's priority to reconcile evidence preservation with response decisions.

Question 544

Management measures review quality by how fast the meeting occurred, not whether recurrence risk changed. Which management response BEST addresses the stated risk or governance priority?

  1. Share role-appropriate lessons while protecting confidential case evidence.
  2. Define action owners, target dates and measurable verification of improvement.
  3. Review business impact, decisions, effectiveness and improvement actions with stakeholders.
  4. Track closure and effectiveness of corrective actions after the review.

Explanation

Correct Answer

D:

Improvement is evidenced by changed controls and reduced repeat exposure. This directly meets the requirement to measure post-incident improvement outcomes.

Incorrect Answers

A:

Learning does not require unrestricted disclosure of sensitive investigation material. That action would communicate lessons without overexposing evidence; it does not address the case's priority to measure post-incident improvement outcomes.

B:

Lessons learned produce change only through accountable follow-through. It is primarily relevant when the need is to turn incident findings into corrective actions, rather than to measure post-incident improvement outcomes.

C:

Lessons learned must address enterprise outcomes, not just malware artifacts. This would help conduct an enterprise-focused post-incident review; the scenario instead requires a decision to measure post-incident improvement outcomes.

Question 545

A responder copies evidence to a personal drive and cannot identify who accessed it afterward. Which management action BEST meets the stated requirement?

  1. Move evidence into approved restricted storage with custody, integrity and access records.
  2. Preserve original timestamps and normalize chronology with documented offsets.
  3. Confirm lawful disclosure scope and authorize controlled evidence exchange.
  4. Balance urgent containment with feasible volatile acquisition under the incident command decision.

Explanation

Correct Answer

A:

Defensible evidence requires attributable handling and integrity controls. This directly meets the requirement to restore forensic evidence handling accountability.

Incorrect Answers

B:

Time interpretation is essential to reconstruct cross-system attack sequence. It is primarily relevant when the need is to establish accurate forensic incident timeline, rather than to restore forensic evidence handling accountability.

C:

Incident urgency does not remove privacy and contractual sharing restrictions. This would help protect privacy in forensic evidence sharing; the scenario instead requires a decision to restore forensic evidence handling accountability.

D:

Preservation is valuable but should not allow preventable material damage. That action would decide evidence collection versus urgent containment; it does not address the case's priority to restore forensic evidence handling accountability.

Question 546

A restored financial service has transaction gaps between the last backup and interruption. Which decision is BEST supported by the business and security evidence?

  1. Require business-owner validation against acceptance and continuity criteria.
  2. Reconcile data integrity and approved RPO before business acceptance.
  3. Validate snapshot integrity and clean recovery conditions before service reconnection.
  4. Verify protection and detection baselines before declaring the service fully restored.

Explanation

Correct Answer

B:

A running application is not recovered if required records are missing or corrupt. This directly meets the requirement to validate transaction completeness after restoration.

Incorrect Answers

A:

Recovery completion is a business outcome supported by technical testing. That action would obtain business acceptance of restored service; it does not address the case's priority to validate transaction completeness after restoration.

C:

Restoring compromised images can reintroduce the same threat. This would help avoid reinfection through untrusted restoration; the scenario instead requires a decision to validate transaction completeness after restoration.

D:

Safe recovery includes necessary security controls, not only application availability. That action would restore security monitoring with the service; it does not address the case's priority to validate transaction completeness after restoration.

Question 547

Executive leadership demands a public statement that the attack is over before the response team has evidence. What is the MOST appropriate next action for the information security manager?

  1. Escalate to the designated incident command authority using approved BIA-based priorities.
  2. Evaluate evidence preservation and legal requirements before action when containment permits.
  3. Communicate confirmed containment status and unresolved risks through the approved spokesperson.
  4. Confirm scope and seek authorized proportionate containment based on credible risk.

Explanation

Correct Answer

C:

Crisis statements must avoid unsupported certainty while updating stakeholders. This directly meets the requirement to report incident status honestly under pressure.

Incorrect Answers

A:

Enterprise governance resolves competing business claims through agreed impact criteria. That action would arbitrate shared-service crisis recovery priorities; it does not address the case's priority to report incident status honestly under pressure.

B:

Incident decisions should protect legal interests without permitting uncontrolled damage. It is primarily relevant when the need is to reconcile evidence preservation with response decisions, rather than to report incident status honestly under pressure.

D:

Broad disruptive action without evidence may create greater harm than the suspected threat. That action would avoid unjustified enterprise-wide containment; it does not address the case's priority to report incident status honestly under pressure.

Question 548

Multiple providers send conflicting timelines for one cross-platform breach. Which management response BEST addresses the stated risk or governance priority?

  1. Assess shared credentials and downstream access before reconnecting services.
  2. Coordinate jurisdiction-specific notifications and verified facts across responsible parties.
  3. Invoke contractual cooperation and evidence obligations with legal escalation.
  4. Establish joint event chronology, evidence owners and reconciliation process.

Explanation

Correct Answer

D:

Distributed incidents require compatible evidence and coordinated attribution. This directly meets the requirement to reconcile cross-supplier incident timelines.

Incorrect Answers

A:

Partner recovery does not guarantee customer integration trust. That action would safely reconnect a recovered supplier; it does not address the case's priority to reconcile cross-supplier incident timelines.

B:

Shared service incidents can activate distinct customer reporting obligations. It is primarily relevant when the need is to coordinate multi-jurisdiction supplier incident disclosures, rather than to reconcile cross-supplier incident timelines.

C:

Supplier evidence is needed for the customer's own impact and notification decisions. This would help obtain necessary supplier incident evidence; the scenario instead requires a decision to reconcile cross-supplier incident timelines.

Question 549

Ransomware is encrypting shares while the incident team debates whether to preserve every volatile artifact first. Which management action BEST meets the stated requirement?

  1. Immediately contain active spread with authorized measures while preserving feasible evidence.
  2. Investigate and close the entry vector before returning affected systems to trusted operation.
  3. Escalate the decision for legal, sanctions, business and recovery evaluation by authorized leaders.
  4. Verify isolated backup integrity and restoration before committing to recovery promises.

Explanation

Correct Answer

A:

Preventing further material loss takes priority when destructive activity is ongoing. This directly meets the requirement to halt active ransomware propagation.

Incorrect Answers

B:

Restoration alone permits immediate reinfection if compromise paths remain. It is primarily relevant when the need is to prevent ransomware reinfection during recovery, rather than to halt active ransomware propagation.

C:

Extortion payment is not a routine technical remediation choice. This would help govern ransomware extortion decisions; the scenario instead requires a decision to halt active ransomware propagation.

D:

Recovery decisions need tested evidence that usable copies remain. That action would confirm ransomware recovery feasibility; it does not address the case's priority to halt active ransomware propagation.

Question 550

Multiple spokespersons issue contradictory statements to customers and regulators. Which decision is BEST supported by the business and security evidence?

  1. Issue required updates through the jurisdiction-specific approved reporting process.
  2. Centralize approved incident messaging with legal and executive coordination.
  3. Activate authorized external dependency notifications according to business impact and agreements.
  4. Use approved verified facts, explicitly manage uncertainty and commit to updates.

Explanation

Correct Answer

B:

A single controlled communication process reduces misinformation. This directly meets the requirement to coordinate consistent external incident messaging.

Incorrect Answers

A:

Initial notice may not satisfy later update duties as facts change. That action would maintain accurate evolving incident disclosures; it does not address the case's priority to coordinate consistent external incident messaging.

C:

Partners need timely information to execute continuity procedures. This would help communicate incident impact to dependent partners; the scenario instead requires a decision to coordinate consistent external incident messaging.

D:

Premature assurance can mislead stakeholders and violate reporting expectations. That action would avoid unsupported breach communication claims; it does not address the case's priority to coordinate consistent external incident messaging.


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