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Building a Resilient Banking Institution: Operational Resilience Implementation at China Construction Bank (Malaysia)
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[OR] [CCB] [E3] [CBS] [2] [ST] Perform Scenario Testing

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Scenario testing is a core requirement of operational resilience, designed to assess whether a bank can remain within its defined impact tolerances during severe but plausible disruptions.

For CBS-2 Payments & Funds Transfer Services, scenario testing validates that critical payment processes continue to function despite cyber incidents, system outages, third-party failures, liquidity constraints, or operational errors.

For China Construction Bank (Malaysia) Berhad, performing structured scenario testing across all payment sub-services ensures regulatory compliance, strengthens stakeholder confidence, and demonstrates integration between business continuity, cyber resilience, ICT risk management, and third-party oversight.

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Moh Heng Goh
Operational Resilience Certified Planner-Specialist-Expert

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 CBS-2 Payments & Funds Transfer Services

Introduction

[OR] [CCB] [E3] [CBS] [2] [ST] Perform Scenario Testing

Scenario testing is a core requirement of operational resilience, designed to assess whether a bank can remain within its defined impact tolerances during severe but plausible disruptions.

For CBS-2 Payments & Funds Transfer Services, scenario testing validates that critical payment processes continue to function despite cyber incidents, system outages, third-party failures, liquidity constraints, or operational errors.

For China Construction Bank (Malaysia) Berhad, performing structured scenario testing across all payment sub-services ensures regulatory compliance, strengthens stakeholder confidence, and demonstrates integration between business continuity, cyber resilience, ICT risk management, and third-party oversight.

The objective of this chapter is to outline recommended scenario testing themes, assess their potential impact, and document proactive risk management actions aligned with operational resilience principles.

Banner [Table] [OR] [E3] Perform Scenario Testing

Table P6: Detailed Processes for CBS-2

Sub-CBS Code

Sub-CBS

Recommended Scenario Test Themes (incl. Cyber & ICT Risk Integration)

Impact / Effect

Evidence of Proactive Risk Management Action

2.1

Account-to-Account Transfers

Core banking system outage; database corruption; ransomware attack on payment module; network switch failure

Inability to process internal transfers; customer dissatisfaction; operational backlog

Annual failover testing to DR site; cyber incident simulation exercises; RTO/RPO validation; reconciliation recovery drills

2.2

Real-Time & Instructional Payments

Real-time payment gateway disruption; SWIFT/PayNet connectivity failure; DDoS attack; authentication server outage

Immediate transaction rejection; liquidity strain; regulatory reporting delays

Quarterly stress testing with payment gateway provider; cyber penetration testing; redundancy in authentication systems; payment rerouting procedures

2.3

Bill Payment & Provider Settlement

API integration failure with billers; malware infection in settlement processing; batch file corruption

Delayed settlements, financial penalties from providers, and reputational damage

API resilience testing; automated reconciliation controls; vendor SLA monitoring; simulated provider outage tests

2.4

Cross-Border Remittances

SWIFT network disruption; sanctions screening engine failure; foreign correspondent bank outage

Payment delays, AML compliance breach risk, and customer complaints

Sanctions screening fallback procedures; alternative correspondent banking arrangements; periodic compliance system stress testing

2.5

Batch & Bulk Payments

Corporate payroll batch upload corruption; scheduler malfunction; storage failure

Payroll delays; SME client impact; operational congestion

Parallel batch processing validation; automated file integrity controls; offsite data backup testing; periodic bulk upload simulation

2.6

Corporate e-Banking Payments Interface

Internet banking platform outage; MFA system compromise; phishing campaign targeting corporate users

Loss of transaction capability; cyber fraud risk; regulatory scrutiny

Redundant internet banking infrastructure; MFA resilience testing; phishing simulation exercises; real-time fraud monitoring

2.7

QR Payment & Digital Channels

Mobile banking app crash; QR gateway outage; mobile malware exploitation; telecom network disruption

Retail transaction failure; merchant dissatisfaction; brand impact

Mobile app stress testing; QR ecosystem contingency testing; telecom redundancy arrangements; cybersecurity monitoring and mobile penetration testing
Integration of Cyber and ICT Risks

Across all Sub-CBS processes, scenario testing integrates:

  • Cyber threat simulations (ransomware, phishing, DDoS, insider threats)
  • ICT infrastructure failure (data center outage, cloud disruption, network failure)
  • Third-party and fintech dependency failure
  • Data integrity and corruption testing
  • Failover and disaster recovery activation testing

This ensures alignment between operational resilience, ICT risk management, cybersecurity frameworks, and third-party risk governance.

 

Banner [Summing] [OR] [E3] Perform Scenario Testing

Performing structured scenario testing for CBS-2 Payments & Funds Transfer Services enables China Construction Bank (Malaysia) Berhad to validate that its payment ecosystem can withstand severe but plausible disruptions while remaining within defined impact tolerances.

By integrating cyber resilience, ICT risk management, and third-party dependency testing into each Sub-CBS, the Bank strengthens its ability to maintain financial stability, protect customers, and meet regulatory expectations.

Ultimately, scenario testing is not merely a compliance exercise—it is a forward-looking resilience capability that ensures the continuity, reliability, and integrity of critical payment services in an increasingly digital and interconnected financial environment.

 

Building a Resilient Banking Institution: Operational Resilience Implementation at China Construction Bank (Malaysia)

 

 

 

 
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