“Security is not a gate—it is a scaffold. It gives our teams the confidence to build fast without compromising integrity.” – Nick Mistry, CISO and SVP of Lineaje.
Cybersecurity professionals face one of the most challenging jobs in modern businesses: dealing with a constantly evolving threat landscape. Every day, they must navigate challenges and obstacles to get their security posture to where it needs to be —a goal that requires both strategic vision and the ability to balance business enablement with risk management.
In this series, we will be interviewing cybersecurity professionals from a wide range of backgrounds, industries, and experiences to bring you their unique insights into cybersecurity today, the challenges they are facing currently and expect to face in the near future, the realities of what it takes to defend complex global environments, and what advice they would offer to other CISOs and cybersecurity professionals.
Nick Mistry is the CISO and SVP of Lineaje. With over 20 years of experience in the development and implementation of new and emerging technology solutions, Nick has led multiple cloud security, application security, and cyber initiatives at multinational corporations and within government. Nick also led technical architecture efforts to implement the US Federal Government Data Consolidation program, FedRAMP, and HealthCare.gov “fix it” initiatives supporting DoD, GSA, and CMS, respectively, and he is the recipient of the Ken Ernst North America Innovators Award.
We spoke to Nick to get his perspective on the challenges of maintaining ongoing cyber resilience. Read on for his insightful responses to our questions:
What cybersecurity challenges does your team deal with on a day-to-day basis?
We face rapidly evolving threats, sprawling open-source dependencies, compliance with stringent regulatory standards, and the need for real-time visibility across complex multi-cloud environments.
Internally, we address these challenges by operating a closed-loop risk data gathering cycle. We enforce strict policy-as-code and zero trust controls across our hybrid cloud environments in GCP, Azure, and AWS.
How have the challenges you deal with evolved in the last few years?
The most significant evolution in cybersecurity has been the rise of AI, both as a transformative capability and as a new and complex attack surface.
The transition from rule-based automation to generative and agentic AI has introduced new dynamics. AI allows us to detect threats faster, remediate vulnerabilities more efficiently, and continuously analyze supply chain risk across massive software ecosystems. However, AI-generated software introduces new concerns, including uncertainty around authorship, behavior, and hidden dependencies—especially when code is produced by opaque foundation models.
Internally, we have built a dual-track strategy. We deploy AI agents for vulnerability discovery, remediation, license validation, and policy enforcement across our full stack. These agents operate independently and in coordination, performing specialized tasks in real time. At the same time, we apply strict governance to AI outputs. Every AI-generated artifact is tracked with an AI Bill of Materials, validated for security compliance, and controlled through automated workflows that ensure traceability and auditability.
Looking ahead, the central challenge will be building and maintaining trust in a world where AI is integrated into every layer of software development and security operations. Organizations must ensure that AI does not become an unmonitored entry point for risk. Securing AI involves more than controlling access to models. It requires verifying what AI builds, how it builds it, and where that output goes.
How have you set your team up for success, dealing with these challenges?
We focus on discipline and fundamentals first. Strong cyber hygiene, continuous vulnerability management, and secure-by-design development processes are the “golden standard” for a reason. However, cybersecurity success goes beyond tools and frameworks; it requires deep, hands-on expertise.
Technology evolves rapidly, so it’s important to invest in ongoing learning and engage in real-world experiences. With decades of experience in the industry, our team is trained to think critically, understand trade-offs, and make practical decisions that balance security with business needs.
How do you evaluate new vendors in the cybersecurity space?
When we bring on a vendor, it’s important to find a partner who earns the trust of both our engineering and security teams, who do the initial vetting. A strong, secure technical foundation is non-negotiable. We need to see that the vendor has a security-first mindset. From there, we dive into an architecture review to understand exactly how their solution fits into our environment and whether it aligns with our standards.
Next, we evaluate real-world use cases. We look at how the vendor can help us secure both our internal infrastructure and, just as importantly, how it helps us secure our customers. We need to see how the product performs under pressure, how it addresses specific threat scenarios, and how well it aligns with our workflows.
The right vendor doesn’t just check boxes; they bring confidence to how we protect what matters the most.
How do you balance security with business agility?
We build our systems so that agility is the byproduct of embedded, continuous security. Agentic AI agents enforce policy and fix issues without requiring manual intervention, which significantly reduces delays and developer burden.
Our developers are empowered to move quickly because the environment itself enforces compliance. When a package is introduced with a known vulnerability, the system automatically replaces it with a GOS-maintained version. When a new framework introduces compliance gaps, our agents generate remediation pull requests and policy diffs on the fly.
Security is not a gate—it is a scaffold. It gives our teams the confidence to build fast without compromising integrity.
What impact, if any, do you see new technologies like AI having on your day-to-day, and will AI have a long-term impact?
We’re only scratching the surface of AI’s impact on everyone’s day-to-day.
The pace of AI progress is exponential. In 2021, when we first started, we focused on machine learning models. Then, large language models (LLMs) emerged, and now we’re actively utilizing agentic AI and orchestration layers. Agentic AI allows multiple agents to collaborate and tackle complex security issues in ways that no one could have imagined even just a few years ago.
There’s also been a significant productivity gain. Tasks that used to take six engineers six months can now be accomplished in a matter of weeks. It’s not just about speed; it’s also about precision, scalability, and the ability to address risks at scale.
Contrary to popular belief, we’re not going to be completely replaced by machines. The true power comes from marrying the capabilities of AI with the deep expertise of seasoned software engineers. AI is a force multiplier, and we’re only at the beginning of its full potential in cybersecurity.
What advice would you give to fellow CISOs and industry practitioners?
Start treating AI and software supply chain integrity as first-class elements of your security strategy. The two are converging quickly. You are no longer just defending networks or applications—you are defending the origin, behavior, and trustworthiness of every software component, including those generated by machines.
Establish governance for AI now. Require AI-BOMs from vendors, define policy guardrails for internal AI use, and use security telemetry to monitor how AI-generated components behave in your environment. Learn the distinctions between LLMs, fine-tuned models, and agentic AI systems, because each introduces unique risk profiles.
A CISO’s role is both a strategist and a technologist. It is no longer sufficient to understand compliance checklists or high-level threats. You need to understand the full software lifecycle, the mechanics of AI, and how automation changes your defensive posture.
If you embrace this mindset, you will not just respond to the next generation of threats—you will be ready for them before they happen.
Why not read other insights from CISOs in the rest of this series:
