Why an Outdated BIA Undermines Your Disaster Recovery Plan
During an IT audit, the auditor discovers that the IT department has not conducted a business impact analysis (BIA) for three years. The organization's disaster recovery plan (DRP) is based on the previous BIA. The IT manager argues that the DRP is still valid because no major changes have occurred. What should the auditor recommend?
Quick Answer
The correct recommendation is that a new business impact analysis be conducted to validate and update the DRP. This is because the BIA serves as the foundational assessment that identifies critical business processes, their dependencies, and the maximum tolerable downtime, directly informing recovery time objectives and recovery point objectives. Without a current BIA, even if no major changes are perceived, subtle shifts in operational workflows, regulatory requirements, or resource availability can silently erode the DRP’s effectiveness, making it unreliable during an actual disruption. On the CISA exam, this scenario tests your understanding that the BIA is not a one-time artifact but a living document requiring periodic review—auditors must challenge the assumption that “no major changes” equals continued validity. A common trap is accepting the IT manager’s justification without recognizing that incremental changes accumulate over time. Memory tip: “BIA before DRP—if the BIA is stale, the DRP will fail.”
⚠ Common exam trap
Many exam-takers assume the IT manager's claim of 'no major changes' is sufficient, but the CISA exam emphasizes that a BIA must be periodically reviewed (typically annually) regardless of perceived stability, because hidden dependencies or gradual changes can still affect recovery requirements.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Recommend that a new BIA be conducted to validate and update the DRP.
A business impact analysis (BIA) is the foundation of a valid disaster recovery plan (DRP). Without a current BIA, the DRP may not reflect the organization's current critical processes, recovery time objectives (RTOs), or recovery point objectives (RPOs). Even if no major changes are perceived, subtle shifts in dependencies, resource availability, or regulatory requirements can render the DRP ineffective. Therefore, the auditor should recommend conducting a new BIA to validate and update the DRP.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Recommend that a new BIA be conducted to validate and update the DRP.
Why this is correct
A DRP derives its recovery priorities and timeframes from BIA output; a three-year-old BIA may no longer reflect current systems or dependencies. Recommending a fresh BIA validates assumptions and updates the DRP, satisfying the need for an accurate, current recovery baseline.
- ✗
Accept the IT manager's rationale and close the finding.
Why it's wrong here
Accepting the manager's rationale leaves the DRP anchored to a three-year-old BIA, so recovery time and recovery point objectives may no longer reflect current business processes, systems or dependencies. It is tempting because a stable environment genuinely reduces BIA frequency, making this defensible only where continuous change monitoring evidences that no critical process, system or dependency has altered.
- ✗
Recommend terminating the current DRP until the BIA is completed.
Why it's wrong here
Terminating the DRP leaves the organisation with no documented recovery capability while the BIA is outstanding, exposing critical systems to unmitigated disruption. It is tempting because an outdated DRP rests on stale recovery priorities, yet suspension is warranted only when a plan is demonstrably unusable — not merely overdue for reassessment.
- ✗
Recommend accepting the risk and documenting the decision.
Why it's wrong here
Accepting the risk leaves the DRP tied to a three-year-old BIA, so recovery priorities and RTOs may no longer match current business processes. Risk acceptance suits low-impact findings where remediation cost exceeds exposure. Here the auditor's role is to recommend reassessment, since BIA underpins DRP validity.
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Same concept, more angles
1 more way this is tested on CISA
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. During a risk assessment, an IS auditor identifies that the IT department has not performed a business impact analysis (BIA) for critical systems. Which of the following is the MOST significant risk?
hard- A.Non-compliance with software licensing
- B.Increased likelihood of security breaches
- C.Inability to calculate total cost of ownership
- ✓ D.Uncertainty regarding recovery time objectives for critical systems
Why D: A business impact analysis (BIA) is essential for identifying critical business functions and determining recovery time objectives (RTOs) and recovery point objectives (RPOs). Without a BIA, the organization lacks a clear understanding of how long systems can be down and what data loss is acceptable, leading to uncertainty in recovery planning. This is the most significant risk because it directly affects the ability to recover from disruptions.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CISA practice question is part of Courseiva's free ISACA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CISA exam.