Scenario testing is an essential component of operational resilience. It allows financial institutions such as Clarien Bank to assess whether their critical business services can continue operating within defined impact tolerances during severe disruptions.
For the critical business service CBS-1 Retail Deposit & Account Services, scenario testing helps evaluate how failures in people, processes, technology, third-party vendors, or cyber-ICT infrastructure may affect the bank’s ability to serve customers.
Consistent with the guidance described in the BCM Institute blog on operational resilience scenario testing, the following table outlines recommended scenario-testing themes for each Sub-CBS process.
Each scenario also identifies the expected impact and the evidence of proactive risk management actions, demonstrating how Clarien Bank integrates Cyber and ICT risk management into operational resilience testing.
Table P6: Perform Scenario Testing for CBS-1
|
Sub-CBS Code |
Sub-CBS |
Recommended Scenario Test Themes |
Impact / Effect |
Evidence of Proactive Risk Management Action |
|
1.1 |
Customer Onboarding & Account Opening |
Digital onboarding platform outage due to cloud service disruption |
Customers are unable to open accounts through digital channels |
Activation of alternate onboarding process; DR failover of onboarding system; integration with ICT resilience and third-party cloud risk monitoring |
|
1.2 |
Customer Identity Verification & Compliance Screening |
KYC/AML screening platform unavailable due to a cyberattack on the compliance vendor |
Delayed onboarding and regulatory risk exposure |
Manual verification procedures; secondary screening provider; cybersecurity monitoring integrated with AML systems |
|
1.3 |
Account Setup & Product Configuration |
Core banking configuration database corruption |
Incorrect account parameters or delays in account activation |
Database backup restoration procedures; configuration change governance; ICT data integrity monitoring |
|
1.4 |
Deposit Processing (Cash, Cheque, Electronic) |
Core deposit processing module outage during peak transaction hours |
Deposits delayed; inaccurate balances temporarily displayed |
Transaction queueing and recovery testing; branch fallback procedures; cyber-ICT monitoring of payment interfaces |
|
1.5 |
Withdrawal & Funds Access |
ATM network outage caused by network provider failure |
Customers are unable to withdraw funds |
Multi-network ATM routing; fallback to branch cash withdrawal; network resilience monitoring |
|
1.6 |
Internal & External Account Transfers |
Payment gateway failure affecting interbank transfers |
Transfers delayed or rejected |
Alternate clearing channel activation; payment switch resilience testing; integration with ICT network redundancy |
|
1.7 |
Digital Banking Access Management |
Online banking authentication service compromised (credential-stuffing attack) |
Customers are unable to log in or have their accounts temporarily locked |
Multi-factor authentication enforcement; cyber incident response testing; identity management resilience |
|
1.8 |
Payment & Bill Payment Processing |
Bill payment processor outage or API failure |
Customers are unable to pay bills via digital banking |
Secondary payment processor availability; payment queue retry mechanisms; vendor ICT resilience review |
|
1.9 |
Debit Card Issuance & Transaction Processing |
Card processor outage or card network cyber disruption |
Debit card transactions declined at the POS or ATM |
Card network failover routing; card transaction monitoring systems; integration with cyber fraud monitoring |
|
1.10 |
Account Monitoring & Fraud Detection |
Fraud detection system unavailable due to malware infection |
Delayed detection of suspicious transactions |
Backup fraud monitoring tools; SOC escalation procedures; integration with cyber threat intelligence |
|
1.11 |
Transaction Posting & Account Ledger Update |
Core banking ledger processing failure during the batch cycle |
Account balances are inaccurate or have delayed updates |
Automated reconciliation recovery process; ledger integrity checks; database resilience controls |
|
1.12 |
Customer Notification & Statement Generation |
Messaging service provider outage affecting SMS/email alerts |
Customers do not receive transaction alerts or statements |
Secondary messaging provider activation; monitoring of communication systems; ICT vendor risk management |
|
1.13 |
Exception Handling & Dispute Management |
Case management platform outage during customer dispute surge |
Delay in dispute resolution and customer dissatisfaction |
Manual dispute logging procedures; DR recovery of case management system; cyber resilience for CRM platform |
|
1.14 |
Reconciliation & Financial Control |
Reconciliation engine data mismatch caused by interface failure |
Financial reporting discrepancies and operational risk |
Automated reconciliation alerts; manual verification process; integration with ICT data validation tools |
|
1.15 |
Regulatory Reporting & Compliance Monitoring |
Regulatory reporting system unavailable before submission deadline |
Potential regulatory breach or reporting delay |
Pre-submission validation checkpoints; backup reporting platform; ICT governance for regulatory reporting |
|
1.16 |
Business Continuity & Account Services Recovery |
Full data centre outage due to cyber-ransomware or infrastructure failure |
All deposit services are disrupted across channels |
DR site activation testing; cyber recovery drills; enterprise ICT resilience integration and crisis management |
Performing scenario testing for CBS-1 Retail Deposit & Account Services enables Clarien Bank to validate whether its operational resilience capabilities can withstand severe disruptions across its retail banking operations.
By testing failures across technology systems, cyber infrastructure, third-party services, and operational processes, the bank gains assurance that its critical deposit and account services remain available within acceptable impact tolerances.
The integration of Cyber and ICT risk considerations into these scenario tests strengthens the bank’s resilience posture.
Through continuous testing, evidence gathering, and improvement actions, Clarien Bank can demonstrate proactive risk management, regulatory compliance, and sustained service reliability for its customers, even during major disruptions.
This structured approach ensures that the bank’s retail banking services remain resilient, secure, and operationally sustainable in an increasingly complex risk environment.
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