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Home | CISO POV | When the Security Stack Keeps Growing, What Actually Reduces Risk?

When the Security Stack Keeps Growing, What Actually Reduces Risk?

With attackers increasingly using synthetic identities and coordinated behavioral patterns, how is “unknown threat” detection changing the way you think about security monitoring and incident response?

It moves security from an indicator-led mindset to a behavior-led one. Known indicators still matter, but sophisticated attackers increasingly use valid identities, legitimate tools, and low-and-slow activity that does not trigger a single obvious alert.

The practical implication is that monitoring must look for context and correlation: unusual access patterns, improbable sequences, privilege changes, data movement, or activity shared across accounts and systems. Incident response must be prepared to investigate a pattern, not only a signature, and to contain risk while the facts are still developing.

AI sharpens this shift on both sides. Attackers use it to make phishing and social engineering more convincing and to move at machine speed, eroding the tells we've relied on; at the same time, our own AI systems become a new attack surface that behavior-led monitoring must cover. The result is a premium on limiting what any actor—human or AI—can do before intent is confirmed, and on having the telemetry to reconstruct events afterward.

When your technology ecosystem touches sensitive financial data and transaction flows, how do you assess whether a third party’s security posture is robust enough to become part of your critical infrastructure?

We start with the role the third party will play and the data or control paths it will touch. A provider that can access sensitive data, influence transactions, or become part of an identity or decision flow needs a higher level of scrutiny than a low-risk productivity tool.

We evaluate the evidence behind the posture: independent assurance reports, architecture and data flows, identity and access controls, encryption, incident-response commitments, vulnerability management, resilience, and subcontractor dependencies. Security review is not a procurement checkbox. It is a lifecycle process, including reassessment when the service, its integrations, or the risk changes.

With security stacks becoming increasingly crowded, how do you distinguish investments that materially reduce risk from those that simply add another tool or control layer?

A security investment should improve a measurable outcome: better visibility, faster detection or containment, reduced exposure, or a simpler and more reliable control environment. If a tool simply creates another console, another alert stream, and another integration to maintain, it may increase operational burden without reducing material risk.

We look at fit within the existing architecture and workflow. Can the tool integrate cleanly, produce actionable signals, support automation where appropriate, and be operated by the people who will rely on it every day? Fewer well-integrated controls are often stronger than a crowded stack of disconnected products.

When evaluating security vendors, which architectural factors—data isolation, access controls, model governance, auditability, or failure handling—carry the most weight beyond the vendor’s headline capabilities?

Headline capabilities matter less than whether the architecture is trustworthy under normal conditions and failure conditions. I look closely at data isolation and residency, least-privilege access, strong authentication, auditability, secure integration patterns, and how the vendor manages changes to models and configurations.

I also want to know what happens when the system fails or when a dependency is compromised: how access is contained, how events are logged, how quickly the customer is informed, and how recovery is tested. Security is not a feature list; it is the discipline of making risk visible, controlled, and recoverable.

There is often a disconnect between what a security vendor sells to the CISO and what the SOC team has to live with every day. Who gets the strongest voice in your evaluation process, and how do you reconcile executive priorities with practitioner realities?

The people who operate the technology every day must have a meaningful voice. A strategic purchase that creates unmanageable alert volumes, fragile integrations, or unclear ownership will fail in practice, regardless of how strong the business case looked in the evaluation.

The best process combines executive priorities with practitioner validation. Leadership defines the risk and business outcomes; security architecture and operations test whether the solution can deliver them; and the final decision reflects both. The objective is not consensus for its own sake, but an informed decision that the operating team can sustain.

As organizations accelerate AI adoption while trying to contain its attack surface, which technical or governance guardrails do you consider non-negotiable?

First, know what data the system can access, where it is processed, retained, and used, and who can change its permissions or behavior. AI systems should have least-privilege access, strong identity controls, logging, tested safeguards against malicious inputs, and explicit boundaries around data sharing and model training.

Second, maintain governance over the full system, not just the model: the data sources, prompts, connected tools, outputs, human approvals, changes, and ongoing monitoring. For consequential workflows, AI should assist people, not silently make unreviewed decisions. Every material change should be controlled, auditable, and reversible.

Looking five years ahead, what cybersecurity capability do you think will become table stakes that most enterprises are still treating as optional today?

Continuous, context-aware security will become table stakes. Enterprises will need to see and control how identities, data, applications, AI systems, and third parties interact, not assess each of those elements in isolation.

That will require security architectures that are designed for change: continuous validation of access and behavior, policy enforcement across connected systems, traceable AI governance, and the ability to contain threats quickly when assumptions fail. Many organizations treat that level of visibility and resilience as optional today. It will be foundational.


About Avinash Raju Bhupathiraju

Avinash Raju Bhupathiraju is Director of Information Security at DataVisor, where he leads the company’s cybersecurity team and oversees efforts to protect its systems, data, and customers. He holds a master’s degree in cybersecurity and brings significant experience from Qatar Airways and HSBC, along with nearly eight years at DataVisor. Since joining the company in 2019, Avinash has helped strengthen DataVisor’s security practices and build a more resilient security program to meet the challenges of an evolving threat landscape.

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About DataVisor

DataVisor is the most comprehensive fraud and financial crime prevention platform powered by sophisticated AI and modern machine learning capabilities. DataVisor empowers customers to protect against future attacks before they happen by detecting and acting on rapidly evolving fraud patterns in real time. DataVisor’s adaptable solution and data-driven approach provide businesses with unparalleled protection in an ever-evolving digital landscape. DataVisor’s award-winning solutions and continuous innovation make it the trusted partner of choice for Fortune 500 companies and leading organizations worldwide, specializing in financial services, banking, credit unions, fintech, and payments.

Learn more at datavisor.com.

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