Executive Summary

In an era where critical infrastructure is a prime target for cyberattacks, security leaders are often tasked with enhancing defenses without a corresponding increase in budget. A recent episode of Security Magazine's "Lock It Down" podcast featured Chetrice Romero, a senior cybersecurity advisor at Ice Miller, who shared practical strategies for protecting essential systems under financial constraints. The discussion focused on building resilience, simplifying complexity, and making strategic technology choices to maximize the impact of limited resources. The advice is crucial for leaders in utilities and other critical sectors who must maintain a high level of security despite economic pressures.

Incident Timeline

This article summarizes a discussion and does not detail a specific incident timeline. The podcast was released on October 8, 2025.

Response Actions

The discussion centered on proactive strategies and response planning rather than actions taken during a specific incident. Key themes included:

• Prioritization: Focusing limited funds on the most critical assets and highest-impact risks.
• Strategic Technology Adoption: Leveraging technology to improve efficiency and scale security capabilities.
• Resilience by Design: Building systems and processes that can withstand and recover from attacks.

Technical Findings

The podcast discussed common threats and vulnerabilities in the critical infrastructure sector, including:

• Converged Threats: The intersection of cyber and physical security vulnerabilities, where a digital attack can have kinetic effects.
• Budgetary Volatility: The challenge of maintaining a consistent security posture when faced with unexpected budget cuts.
• Operational Complexity: The difficulty of securing sprawling, heterogeneous environments that often include legacy OT/ICS systems.

Detection & Response

The discussion offered several recommendations for improving detection and response capabilities on a budget:

1. Leverage Cloud-Native Platforms: Adopting cloud-native security tools can be more cost-effective than deploying and managing on-premise hardware. These platforms often provide advanced analytics, threat intelligence, and automation capabilities that can augment a small security team.
2. Design Scalable Command Centers: Instead of building a massive, expensive Security Operations Center (SOC) from day one, design a command center that is scalable. Start with essential monitoring and response functions and build out capabilities over time as the budget allows.
3. Focus on Foundational Controls: Prioritize fundamental security hygiene, such as asset management, patching, network segmentation, and user training. These controls provide the greatest risk reduction for the lowest cost.

Lessons Learned

• Security is Not All-or-Nothing: Significant security improvements can be made even with a limited budget by focusing on high-impact, low-cost initiatives.
• Collaboration is Key: Sharing threat intelligence and best practices with industry peers and government partners (like CISA) can provide valuable insights without requiring a large internal research team.
• Simplicity Reduces Risk: Complex security architectures are expensive to maintain and difficult to secure. Simplifying the environment and standardizing on a smaller set of technologies can reduce the attack surface and operational overhead.

Mitigation Recommendations

1. Risk-Based Prioritization: Conduct a thorough risk assessment to identify the most critical systems and potential attack paths. Allocate budget to protect these "crown jewels" first. This might mean focusing on protecting the industrial control systems (ICS) network over less critical corporate IT systems.
2. Open Source Intelligence (OSINT): Utilize free and open-source tools and intelligence feeds to supplement commercial solutions. This can provide valuable visibility into threats without a significant financial investment.
3. Automate Repetitive Tasks: Use Security Orchestration, Automation, and Response (SOAR) platforms (including free or community editions) to automate routine tasks like phishing analysis or IOC enrichment. This frees up analyst time to focus on more complex threats.
4. Develop a Resilient Architecture: Focus on the ability to recover quickly from an attack. This means investing in reliable, tested backups and developing robust incident response and business continuity plans. The ability to restore operations quickly can be more important than preventing every single attack.