Operational Resilience

[OR] [PM] [P2] [Appendix] [I] Severe but Plausible Scenario Library

Written by Moh Heng Goh | Aug 28, 2026, 3:54:20 AM

Implement Phase Appendices

These appendices provide practical templates, checklists, registers, and implementation tools to support the five stages of the Implement Phase:

    • Identify Critical Business Services
    • Map Interconnections and Interdependencies
    • Set Impact Tolerance
    • Conduct Scenario Testing
    • Improve Lessons Learned

The templates should be adapted to reflect the organisation’s size, complexity, regulatory environment, risk profile, governance structure, and operational resilience maturity.

Appendix I:  Severe but Plausible Scenario Library

 

 

Scenario Ref

Scenario

Primary Threat

Resources Affected

Suitable CBS

Testing Objective

SC-01

Ransomware affecting production systems

Cyber

Technology / Information

 

Validate cyber recovery

SC-02

Primary application outage

Technology

Technology

 

Validate system resilience

SC-03

Cloud region failure

Technology

Technology / Third Party

 

Validate cloud failover

SC-04

Telecommunications outage

Infrastructure

Technology / Third Party

 

Validate alternate connectivity

SC-05

Loss of primary facility

Physical

Facility / People

 

Validate alternate working

SC-06

Workforce unavailability

People

People / Process

 

Validate staffing resilience

SC-07

Critical supplier failure

Third Party

Third Party

 

Validate supplier contingency

SC-08

Data corruption

Information

Information / Technology

 

Validate integrity and recovery

SC-09

Utility outage

Infrastructure

Facility / Technology

 

Validate facility resilience

SC-10

Peak-volume technology failure

Compound

Technology / Process

 

Test capacity under stress

SC-11

Cloud outage and cyberattack

Compound

Technology / Third Party

 

Test concurrent disruptions

SC-12

Facility loss with workforce shortage

Compound

Facility / People

 

Test multi-resource failure

SC-13

Major third-party insolvency

Third Party

Third Party / Process

 

Test replacement capability

SC-14

Loss of the authentication platform

Technology

Shared Technology

 

Test cross-service dependency

SC-15

Critical data provider outage

Third Party

Information / Third Party

 

Test alternate data sources

 

The scenario library should be expanded as new threats, technologies, suppliers, and operating models emerge.

"Implement" Phase of the OR Planning Methodology

Identify Critical Business Services Map Inter-connection and Inter-dependencies Set Impact Tolerance Conduct Scenario Testing Improve Lessons Learned  
 

 

More Information About Blended Learning OR-5000 [BL-OR-5] or OR-300 [BL-OR-3]

Contact our course consultant colleagues to learn more about our blended learning program and about the next course's schedule.  They are the BL-OR-3 Blended Learning OR-300 Operational Resilience Implementer and the BL-OR-5 Blended Learning OR-5000 Operational Resilience Expert Implementer.

 

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