What You Need to Know About Operational Resilience

Operational Resilience is your organisation’s ability to anticipate, prepare for, respond to, and adapt to disruption while continuing to deliver its critical services. Operational resilience is often conflated with disaster recovery, but the key difference is that operational resilience means remaining functional through cyberattacks, system failures, supply chain issues, or other unforseen events.

In regulated sectors such as financial services, firms must meet evolving expectations from regulators like the FCA, PRA, and under EU DORA, demonstrating they can continue to deliver important services within defined impact tolerances even under severe scenarios.

Many organisations mistakenly think resilience is only about backups or disaster recovery, but it’s actually a strategic capability that spans culture, governance, strategy, and technology. To learn more by debunking common misconceptions, read our blog: “The Top 5 Myths About Operational Resilience”.

• Risk identification, which involves understanding threats across people, systems, processes, and third parties.
• Business continuity, meaning services continue during disruption.
• Incident detection and response that rapidly identifies and mitigates threats.
• Recovery and adaptation, referring to the ability to restore operations and improve them over time.
• Governance and compliance, so you meet regulatory expectations including impact tolerances and scenario testing.

Business continuity focuses on recovery, whereas operational resilience focuses on maintaining critical services and limiting impact before, during, and after disruption or a breach.

Operational resilience is essential because disruption is inevitable and the consequences of being unprepared are significant. These include:

• A breakdown of customer trust and substantial reputational damage, as breaches impact brand perception long-term.
• Compliances breaches that can incur fines, as UK and EU frameworks require evidence of resilience planning and testing.
• Financial losses as downtime leads to lost revenue, fines, and recovery costs, such as the M&S breach in 2025.
• A competitive disadvantage, as resilient organisations recover faster and outperform their peers in terms of reliability.
• Falling victim to cyber attacks, as your security posture may be missing proactive defence and adaptability.

Implementing Operational Resilience is a structured, ongoing process spanning strategy, governance, technology, and culture. The struggle often lies in switching from a reactive to an always-on approach. Below is a best-practice implementation approach:

1. Define Critical Services and Get Board Buy-in

Identify the services most essential to customers and regulators, then map out dependencies across systems, data, personnel, and third parties. This step requires board-level buy-in to ensure resilience priorities reflect business and regulatory risk, so it’s essential to ensure the board understand the importance of operational resilience.

2. Set Impact Tolerances

Decide how much disruption is acceptable for each critical service, such as maximum downtime or data loss, and align with regulatory expectations (FCA, PRA, DORA, etc.).

3. Risk Assessment and Scenario Testing

Assess threats such as cyberattacks, outages, and supply chain failures. Run severe but plausible scenarios to test whether impact tolerances can be met and refine plans based on results.

4. Build Resilient Architecture

Design systems for redundancy and rapid recovery:

• Failover systems
• Cloud multi-region configurations
• Automated, monitored infrastructure
• Zero-trust security and strong incident response processes

This aligns your technical stack with your broader resilience goals.

5. Business Continuity and Disaster Recovery

Document and frequently test your business continuity and disaster recovery (DR) plans. Use recovery assurance processes to ensure backups are secure, recoverable, and free of threats. Ensure staff understand roles and escalation paths during incidents.

6. Third-Party Risk Management

Assess the resilience and recovery capability of vendors and partners. You should also include resilience obligations in contracts.

Regulators increasingly expect firms to demonstrate oversight of critical third parties as part of resilience programmes.

7. Continuous Improvement

Operational Resilience is ongoing. Continuously monitor, test, and update plans using key performance indicators such as uptime, response times, and recovery effectiveness.

Consistent review also prepares you for emerging threats and regulatory updates.

At Celerity, our expert consultancy and managed services help you build, test, and mature your Operational Resilience strategy, from planning and cyber risk assessment to automated recovery, monitoring, and compliance support.

Whether you need:

• Cyber security and incident response
• Resilience architecture and SIEM/MDR support
• Business continuity and disaster recovery assurance
• Third-party resilience assessments

Our team ensures your resilience framework is robust, practical, and aligned with regulatory expectations.

Talk to our specialists today to strengthen your Operational Resilience and future-proof your organisation.