This work surveys cyber resilience and its frameworks.

What is it about?

The work presents a comprehensive survey of cyber resilience, emphasising critical strategies, research challenges, and future directions. It aims to identify significant domains of cyber resilience, measure their effectiveness, and explore solutions. The survey compares and analyses different studies in each domain to find ways of enhancing cyber resilience. It also compares cyber resilience frameworks and strategies based on technical requirements for various applications. It presents applications implementing cyber resilience and compares various popular cyber resilience tools to help researchers, practitioners, and organisations choose the best practices for enhancing cyber resilience. Key findings, limitations, problems, and future directions are shared to provide insights for further research and development in cyber resilience.

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Why is it important?

Cyber resilience is vital due to the increasing number of data breaches caused by cyber-attacks, which can adversely affect business operations. It refers to an organisation's ability to prepare for, absorb, recover from, and adapt to adverse effects caused by cyber-attacks. Cyber resilience is crucial in critical infrastructure areas such as healthcare, power systems, and transportation, where reliance on cyber resilience can significantly impact our lives. It helps organisations to anticipate, withstand, recover from, and adapt to adverse conditions, stresses, attacks, or compromises on cyber resources, ensuring the continuation of services or business operations despite cyber threats. Cyber resilience is essential for defending against cyber-attacks, maintaining system operations, and protecting data, applications, and IT infrastructure.

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