Eight Steps to Achieve Robust Cyber Resilience
- Cybersecurity July 16,2024
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In today's digital age, the attack surface is constantly expanding due to trends in remote work, the sophistication of cyber-criminal groups, and inherent human vulnerabilities. It's no wonder that cyber incidents have topped global companies' concerns, as highlighted in the Allianz Risk Barometer’s 2022 annual report.
Maintaining operations after a cyber intrusion is vital for customer trust, business revenue, brand reputation, and regulatory compliance. Despite this, only a few companies have developed robust cyber resilience (CR), leaving many vulnerable to the grave consequences of cyberattacks.
Step 1: Establish a Dedicated Cyber Resiliency Unit
The first step towards cyber resilience is creating a focused unit led by a CR champion. This leader should possess both IT and business acumen and have the full backing of senior leadership. Organizational silos, where crucial knowledge resides only within specific functions, can hinder resiliency efforts. The CR champion should integrate insights and support from various business functions into a cohesive cyber resiliency program.Step 2: Increase Awareness of Digital Resources
An essential aspect of cyber resilience is having a comprehensive inventory of IT and business networks, operational technology, industrial control systems (OT/ICS), and data repositories. With many organizations migrating to the cloud, off-premises and hybrid environments must also be included. The CR team, with help from business and IT process owners, should map digital roles and activities crucial for organizational functioning. Additionally, it is vital to survey cyber links to suppliers and vendors, estimate associated risks, and formally acknowledge hazards.Step 3: Prioritize Key Assets
Once digital resources are identified, the next step is to prioritize protecting high-value assets and monitoring significant system weaknesses. Adopting a zero-trust security framework, implementing stringent identity and access management controls, and securing virtual private networks (VPNs) and encryption are critical measures. Network segmentation can prevent lateral movement by malicious intruders, and clear demarcations between IT and OT connectivity and control systems are essential. Offline backups for all data and systems further bolster security.Step 4: Establish Cyber Threat Partnerships
Anticipating cyberattacks involves establishing partnerships that can help prevent and respond to incidents. Sharing cyber threat intelligence and collaborating on security issues with both private sector peers and public sector agencies enhances collective defense and mutual resilience. While these partnerships won't prevent every attack, they contribute significantly to overall cyber resilience.Step 5: Integrate Cyber and Business Strategies
A unified approach to managing cyber risk that integrates cyber and business strategies is crucial. This involves updating governance documents such as business impact analyses, technology management strategies, and business continuity procedures. CR team members should collaborate with IT teams and business lines to review and refine cyber incident response plans, recovery objectives, maximum tolerable downtime, and alternative action plans.Step 6: Embed Cyber Resilience Across the Organization
Although the CR team leads the effort, program goals should be integrated throughout the organization. Business units and IT teams must create or update their cyber resilience governance documents.A comprehensive checklist can help ensure a robust plan:
- Identify a CR champion.
- Heighten awareness of all digital resources.
- Document dependencies on third parties, suppliers, and vendors.
- Prioritize assets across digital, physical, and vendor-managed inventories.
- Increase network segmentation and develop a data vault.
- Enhance identity and access management (IAM), emphasizing role-based access management (RBAM) for critical systems.
- Partner with government agencies for threat awareness.
- Collaborate with industry leaders for efficient CR processes.