A financial institution utilizes a highly customized legacy core banking system that handles all transactions. An IS auditor discovers that the system relies on a single, aging hardware server with no redundancy or failover capabilities. The organization's IT budget has consistently deprioritized upgrades for this system due to its perceived stability and the high cost of customization. What is the MOST significant long-term risk this situation poses to the organization's information systems operations and business resilience?
- AIncreased licensing costs for the legacy software.
- BCatastrophic system failure leading to prolonged service outage and financial loss.
- CDifficulty in attracting and retaining IT staff skilled in legacy technologies.
- DInability to integrate with newer, more agile financial technologies.
Show answer & explanationAnswer & explanation
Correct answer: B. Catastrophic system failure leading to prolonged service outage and financial loss.
A single point of failure (aging hardware, no redundancy) for a critical system like core banking poses an existential threat. Its failure would lead to a prolonged, catastrophic outage, directly impacting financial transactions, customer trust, and regulatory compliance, resulting in massive financial losses and potential business collapse. While other options are risks, they are secondary to the immediate threat of total operational cessation.
Why the other options are wrong
- A. Licensing costs are a financial burden but do not directly threaten operational continuity in the same way as a single point of failure.
- C. Staffing issues are a challenge but are a contributing factor to the risk, not the most significant singular risk of total system failure.
- D. Integration challenges are a strategic limitation, but less immediate and catastrophic than the failure of the core system itself.
Single Point of Failure (SPOF)
A component of a system that, if it fails, will stop the entire system from working. SPOFs are critical vulnerabilities in system design.
- Lack of redundancy is a key indicator.
- Can lead to complete system outage.
- Mitigated through fault tolerance and high availability designs.
Memory trick: One old server, if it goes down, takes the whole bank to town.