[BCM] [CAAS] [E3] [BCS] [T2] [CBF] [9] Recovery Strategies

[Business Continuity Strategy] [Template 2]

CBF 1: Air Navigation Services

Recovery Strategies

The Civil Aviation Authority of Singapore (CAAS) relies heavily on robust IT and cyber resilience capabilities to ensure the seamless operation of Singapore’s airspace and aviation ecosystem.

Given the high stakes of air traffic management, aviation safety, cybersecurity, and digital services, IT disruptions or cyber incidents could significantly impair operational integrity, passenger safety, and national security.

The following recovery strategies are designed for Critical Business Function (CBF-9: IT & Cyber Resilience). They identify key Sub-CBFs, set appropriate Recovery Time Objectives (RTOs), and outline specific recovery strategies tailored to each critical IT and cyber resilience function.

These strategies draw reference from industry best practices and mitigation strategies outlined in BCMpedia, ensuring that CAAS maintains operational continuity, security, and compliance in the face of disruptions.

Table 2: [BCS] [T2] Recovery Strategies for CBF 1: Air Navigation Services

Sub-CBF Code	Sub-CBF	RTO	Recovery Strategy	Recovery Location	Details of Recovery Strategy	Justification for Selected Recovery Strategy
CBF-1.1	Air Traffic Management (ATM) Systems Resilience	0 – 2 hrs	Active-Active Failover	Secondary Data Centre (Hot Site)	Implement geographically separate redundant ATM systems with real-time replication and automated failover.	Air traffic safety is paramount; downtime can result in catastrophic consequences.
CBF-1.2	Cybersecurity Monitoring & Threat Response	2 hrs	Security Operations Centre (SOC) with Redundancy	Primary & Alternate SOC Facilities	Ensure 24/7 monitoring through an in-house SOC with cloud-based threat intelligence feeds and outsourced SOC backup.	Rapid detection and response are essential to contain threats before escalation.
CBF-1.3	Critical System Backup & Data Recovery	4 hrs	Real-Time Data Replication with Immutable Backups	Offsite Backup Vault (Cloud & Physical)	Maintain continuous replication of mission-critical databases with immutable, encrypted offsite backups.	Prevents data loss from ransomware or cyber-attacks while ensuring quick recovery.
CBF-1.4	Enterprise IT Infrastructure Continuity	8 hrs	Virtualisation & Cloud Recovery	Alternate Cloud Infrastructure	Use hybrid cloud with Infrastructure-as-Code for rapid redeployment of enterprise IT services.	Ensures IT service continuity without reliance on physical infrastructure.
CBF-1.5	Digital Aviation Services Platform (DASP) Resilience	4 hrs	Microservices & Containerisation	Secondary Cloud Environment	Deploy redundant containerised services across multiple availability zones.	Supports scalability, agility, and rapid service restoration for aviation stakeholders.
CBF-1.6	Cloud and Third-Party Service Continuity	12 hrs	Multi-Cloud & Vendor Diversification	Secondary Cloud Providers	Establish contracts with multiple cloud service providers; diversify DNS, CDN, and API gateways.	Reduces vendor lock-in risks and strengthens resilience against third-party outages.
CBF-1.7	IT Governance & Compliance Management	24 hrs	Policy & Documentation Portability	Secure Compliance Repository	Maintain digital and offline copies of compliance documentation and audit trails accessible across secure platforms.	Ensures compliance obligations are met even during IT disruptions.
CBF-1.8	Disaster Recovery Planning and Testing	Continuous	Regular Testing & Simulation Exercises	Test Labs & Training Facilities	Conduct annual full-scale DR drills, tabletop exercises, and penetration tests.	Validates resilience plans, ensures readiness, and identifies gaps in IT recovery.

Summing Up ...

The recovery strategies for CBF-9 IT & Cyber Resilience underscore the mission-critical role that technology plays in the aviation sector.

By adopting a layered approach—combining redundancy, cloud capabilities, data replication, cybersecurity operations, and rigorous testing—CAAS ensures resilience against both operational disruptions and cyber threats.

These strategies not only align with ISO 22301 standards but also strengthen Singapore’s position as a global aviation hub that prioritises safety, reliability, and trust.

Through continuous review, testing, and adaptation of IT and cyber resilience measures, CAAS is well-prepared to safeguard aviation operations against evolving risks and ensure the continuity of essential services.

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CBF-1 Air Navigation Services
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