Incident Response, Disaster Recovery & Business Continuity, A Practical Approach

In today’s unpredictable cyber landscape, organizations must develop strategies for Incident Response (IR), Disaster Recovery (DR), and Business Continuity (BC). This article provides a practical approach instead of a theoretical one. It explores the latest trends, including AI-driven threat detection, ransomware resilience, and cloud-based recovery. The article also highlights best practices for BC, such as continuous testing, prioritization of critical assets, and cross-functional collaboration.

Context:

We all undergo fire drill training, whether in our residential societies or workplaces. But in the event of a real fire, will we remember the dos and don’ts, or will panic take over? Similarly, in a medical emergency, do we know exactly whom to call and where to go, or will confusion set in?

Whether it’s a personal crisis, a cyber incident, or an operational disruption, the question is not “if” it will happen but “when”. Emergencies don’t announce their arrival—they strike without warning. The key to success lies in managing an emergency effectively rather than assuming it will never happen to us.

So, how do we handle such situations without succumbing to panic? The solution is straightforward: preparation and practice. Yet, many organizations struggle because they either lack well-defined policies and processes, rely on outdated runbooks, lack ownership, or fail to rehearse their plans regularly and diligently. Organizations without a well-structured incident response and recovery plan risk financial losses, reputational damage, and regulatory penalties. This article focuses on practical, actionable strategies that work in high-pressure situations.

1. Incident Response

a) Preparing for the Inevitable: The Role of Playbooks

Most organizations have incident response plans, but how many truly test and update them regularly? A static plan is as ineffective as having no plan at all. As Thomas Edison wisely said, “Strategy without execution is hallucination.”

Organizations should focus on:

  • Creating scenario-specific playbooks for threats such as ransomware, insider attacks, and DDoS incidents. If you’ve watched Article 370, recall the scene where the army team lists every possible worst-case scenario and then plans backward—this is precisely how incident response should be approached.
  • Conducting quarterly tabletop exercises with IT, legal, PR, and compliance teams. Treat these sessions as role-playing drills to ensure all stakeholders understand their responsibilities.
  • Providing role-based training so that each stakeholder knows their specific duties during an incident, minimizing chaos and confusion.
  • Participating in cyber drills conducted by the regulator. These exercises serve as valuable mock tests, helping organizations assess their preparedness in managing emergencies.

b) AI-Powered Threat Detection & Automation

With the rise of AI-driven cyber threats, relying on manual detection is no longer viable. It should be “AI for AI.”

  • AI-driven anomaly detection: Helps identify suspicious behaviour before an attack escalates.
  • Automated containment: AI-powered SOAR (Security Orchestration, Automation, and Response) platforms can isolate compromised endpoints within seconds.
  • Threat intelligence integration: Real-time data feeds enhance proactive defence mechanisms.

c) Incident Response Metrics That Matter

Instead of vanity metrics, CISOs should track:

  • Mean Time to Detect (MTTD): How long it takes to identify an incident.
  • Mean Time to Respond (MTTR): The speed of containment and mitigation.
  • Containment effectiveness: How well incidents are isolated before causing widespread damage.

2. Disaster Recovery: Moving Beyond Backups

a) DR Strategy

Relying on a passive Disaster Recovery (DR) setup to function flawlessly within the planned Recovery Time Objective (RTO) during an actual emergency is often more of a dream than reality. While this may sound discouraging, it is a hard truth.

For passive DR to work effectively when needed, it must remain in perfect sync with the production environment, from configuration to data backups. A single misstep or a lapse in change management can quickly turn a recovery effort into a disaster itself.

I strongly recommend adopting an active-active setup, ensuring that your business never faces complete downtime. You can implement multiple active sites, even better. Think of it like deploying a series of servers behind a load balancer—if one server fails, the business continues without disruption.

However, data backup remains a critical challenge and must be handled with meticulous planning to ensure consistency and reliability across all sites.

b) Ransomware-Resilient Backup Strategy

Traditional backup methods are no longer sufficient, as modern ransomware actively targets backup repositories. Consider:

  • Immutable backups: Prevents attackers from altering or deleting stored data.
  • Air-gapped backups: Ensures an offline copy exists, safe from network-based threats.
  • Continuous replication: Provides near-instant failover capabilities to secondary sites.

c) Cloud-Based Recovery:

On-premises disaster recovery is still in use, but many organizations are increasingly exploring cloud-based DR due to its advantages:

  • Geographical redundancy without significant CapEx investments.
  • Faster recovery times help achieve the desired RTO and RPO.
  • Scalability on demand, allowing businesses to expand recovery resources as needed.

d) Testing and Validation

One of the biggest pitfalls in disaster recovery is the lack of regular testing. Just like fire drills or emergency response training, a DR plan is only effective if it’s practiced. Without testing, it’s impossible to know whether recovery procedures will work when needed.

Organizations should focus on:

  • Monthly failover tests to ensure recovery processes function as expected.
  • Using controlled experiments to mimic real-world disruptions and identify hidden vulnerabilities before they cause major failures.
  • Automating DR drills makes it easier to assess effectiveness without disrupting business operations. One can automate to a level where the press of a button can invoke DR automatically, but it requires maturity across all processes within an organization.

3. Business Continuity: Ensuring Long-Term Resilience

a) Prioritizing Business-Critical Functions

Not all systems are equal. Instead of a one-size-fits-all approach, organizations should:

  • Conduct Business Impact Analysis (BIA) to identify mission-critical operations. This is the most crucial step of BC planning.
  • Establish tiered recovery priorities, ensuring essential services recover first. “I need everything” may not be the right choice.
  • Implement operational redundancies for critical workflows.

b) Cross-Functional Collaboration

Although you need someone to drive Business Continuity, the result remains well-coordinated, a collective effort between various functions.

  • Engage Technology, Cybersecurity, Business, Finance, and HR teams in continuity planning.
  • Work with third-party vendors to ensure supply chain resilience.
  • Create clear escalation protocols for executive leadership involvement.

c) Addressing the Human Factor

People are often the weakest link in continuity efforts. To address this:

  • Conduct regular training to improve decision-making under stress.
  • Develop contingency workforce plans for essential roles.
  • Foster a security-first culture, emphasizing accountability at all levels.

Conclusion

Incident Response, Disaster Recovery, and Business Continuity are integrated components of organizational resilience. Focus on:

  • Building practical, well-rehearsed response plans.
  • Investing in AI and automation for faster detection and recovery.
  • Shifting from traditional backup methods to ransomware-resilient strategies.
  • Prioritizing business-critical operations with clear recovery objectives.
  • Fostering cross-functional collaboration to ensure enterprise-wide preparedness.

In a world where cyber threats continue to evolve, resilience is not about eliminating risks—it’s about responding effectively when they arise. By taking a pragmatic, tested approach, organizations can not only survive disruptions but also emerge stronger from them.

Authored By: Tejas Mehta, Sr. Vice President & Head-Business – Technology & Cybersecurity, Sigma-Byte Computers

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