Before Arun K. Singh managed security businesses, global teams and a company built around identity, he met the subject as mathematics with consequences. During his M.Tech. in Electrical Engineering at IIT Kanpur, a cryptography course caught his imagination. The appeal was precise and almost theatrical. A message could be visible yet unreadable. Trust could be expressed as a key. An elegant piece of reasoning could decide who was allowed to know what.
That class became a career. Singh joined Infosys Technologies in a research group, where he worked on e-commerce security and compliance and published research papers. The web was turning into a place where money, personal information and institutional risk travelled together. Security could no longer sit in the basement wearing a badge marked “technical problem.” It was becoming part of how a business worked.
More than 25 years later, Singh is based in Plano and leads Ilantus Services as president and CEO, while also serving as CEO Americas for Network Intelligence. The title is grander than the original cryptography puzzle, but the central question has hardly moved: who gets in?
The builder inside the specialist
Singh did not remain a researcher for long. At Wipro Technologies, he became a practice leader for Enterprise Security Services and spent about a decade building the operation and driving global sales. He has described starting with a group of roughly 40 cybersecurity professionals, then helping expand its footprint and coverage across risk and compliance, application security, data protection, infrastructure security and security operations.
The revealing verb in his career is build. He did not simply inherit mature desks with sensible filing systems. At Accenture, where he became managing director and global lead for Managed Security Services, he developed a new line of business. That meant writing the service catalog, establishing delivery processes, assembling sales and delivery capability, winning internal backing and producing the customer stories that keep a new venture alive.
Singh has called that Accenture chapter a turning point. It gave him a closer view of the problems customers actually faced and the experience of managing a diverse team across regions. Cybersecurity expertise was necessary. So were budgets, persuasion, packaging and the ability to make a complicated service behave consistently on different continents.
A high EQ is essential to becoming a great leader and an effective team player.Arun K. Singh on advice for emerging leaders
His next assignment widened the frame again. At Ernst & Young, Singh served as a principal and partner and as an Americas advisory risk leader for cybersecurity. He worked with a global team on a business case for Cybersecurity-as-a-Service and secured investment backing for offerings across digital identity, data protection, threat detection and response, and threat exposure management. Artificial intelligence, machine learning, automation, threat intelligence and analytics entered the toolkit.
This was not technology collecting dust in a slide deck. The point was to deliver security as an ongoing service, not a one-time ceremony followed by a handsome binder. Singh's career kept moving toward systems that could operate, observe and respond after the consultants left the room.
A risk called Ilantus
In October 2020, Singh left EY to become global CEO and a board member of Ilantus Technologies. It was a smaller stage with a more exposed edge. Ilantus had two decades of identity and access management experience and both product and services ambitions. Singh arrived with the habits of large organizations and entered what he described as a startup culture.
He has been unusually plain about the gamble. Moving from services to a product mindset was “a big risk,” he said. A services company can tailor its work around a customer. A product company must make choices once, encode them well, and persuade many customers that those choices fit. One rewards range. The other demands opinion.
Ilantus had tried to combine several identity functions in one cloud-delivered platform: access management, identity governance and administration, identity analytics and privileged access management. The pitch reflected a frustration Singh had seen in the field. Enterprises were buying several products, then spending time and money stitching them together. A clever lock is not much help if the doorframe arrives in seven boxes.
The identity perimeter kept widening
Conceptual view of the expanding access-governance problem, not a quantitative market measure.
The structure changed. Ilantus separated its product and services businesses, and in February 2023 Network Intelligence acquired the services operation. The product business became Cross Identity. Singh remained with Ilantus Services as president and CEO, now combining its IAM specialization with Network Intelligence's broader cybersecurity work. He called the deal a natural next step and argued it would bring advanced identity services to a wider audience.
There is an operator's pragmatism in that chapter. A tidy corporate story says every business should remain whole. An experienced one asks whether different businesses need different owners, incentives and rhythms. Product engineering and professional services may share customers and vocabulary while requiring distinct forms of patience.
The episode also says something about Singh's style. He talks about culture in operational terms: open, transparent and accountable, supported by a playbook. Those adjectives can become lobby wallpaper in a hurry. A restructuring forces them into the accounts. Leaders must say which team owns which outcome, where investment goes and what each business is designed to do. Clarity stops being a value on a poster and becomes an org chart.
From passwords to actors without faces
Singh's public thinking has moved with the perimeter. In articles and interviews, he has written about passwordless authentication, Zero Trust and the role of IAM in digital transformation. More recently, his attention has turned to continuous trust and non-human identity: bots, workloads and autonomous agents that can act inside an enterprise without ever carrying a coffee cup or forgetting a password.
After Identiverse 2025, he highlighted three themes: non-human identities, continuous trust and agentic AI. His formulation is useful because it pulls identity out of the login screen. Authentication is not merely a gate crossed once. Trust may need to be evaluated while an actor is operating, particularly when that actor is software moving faster than a person can supervise.
At an IBM TechXchange workshop in Austin in May 2026, Singh framed identity as the control plane not only for users but also for autonomous agents and workloads. He emphasized runtime security, identity fabric and observability. In ordinary language: an organization needs to know what is acting, what authority it has, and what it is doing now.
Increasingly, identity is becoming the control plane for how we secure not just users, but autonomous agents, workloads, and AI-driven systems.Arun K. Singh, 2026
The old password prompt looks almost quaint beside that problem. An AI agent may perform useful work across several systems, inherit permissions and trigger other automated processes. Access is no longer a key handed to a person. It is authority moving through a network. Without governance, speed becomes a liability with excellent posture.
This is why Singh's long apprenticeship across research, consulting, managed services and products matters. Each domain sees a different failure. Researchers find the weakness in an assumption. Consultants find the gap between policy and practice. Operators find the alert that arrives at 2 a.m. Product teams find the friction users route around. Identity sits where all four complaints meet.
The human part of identity
For someone who has built a career around digital identity, Singh also talks about the word in a personal register. After completing a 15-day Kailash Mansarovar pilgrimage, he reflected publicly on the roles people accumulate: child, sibling, spouse, parent, grandparent and professional. His question was what remains beyond those labels.
It is tempting to turn that coincidence into a philosophy seminar. Singh keeps it more grounded. His stated formula for balancing work and life is strict discipline and conscious context switching. When working, give it full attention. When in personal time, do the same. Aligning work with passion, he says, helps him give each context the attention it deserves.
That emphasis on attention fits his leadership advice. He tells emerging entrepreneurs to value emotional intelligence: the ability to understand, empathize and connect. The counsel carries extra weight from someone trained in cryptography. Technical depth may open a door. People decide whether anyone wants to follow you through it.
Cryptography and e-commerce security at the beginning of a career.
Global security practices at Wipro, Accenture and EY.
CEO of Ilantus from 2020, through a restructuring and acquisition.
Governance for people, workloads and AI agents under continuous trust.
Singh's current work still has the texture of his first fascination. Cryptography makes trust computable. Identity governance makes it operational. Leadership makes it social. Each layer asks for judgment about boundaries, authority and consequence.
He has said that his longer-term ambitions include growing Ilantus, expanding the use of AI and machine learning in identity security, and eventually working with investment firms as an advisory-board leader for cybersecurity companies. That future would place him near another kind of access decision: which ideas and teams receive capital, counsel and permission to scale.
The career is not a straight ascent from researcher to executive. It is a widening circle around one durable problem. First came protected messages. Then applications, operations, enterprises and global teams. Now the cast includes autonomous software. The door keeps changing shape. Singh keeps asking who should pass through it.