Japan TCS and Illumio Announce Strategic Partnership to Enhance Enterprise Cyber Resilience

TOKYO | April 1, 2026: Tata Consultancy Services Japan Ltd. (Headquarters: Minato-ku, Tokyo; Representative Director and President: Satish Thiagarajan; hereinafter, Japan TCS) announced that it has formed a strategic partnership with Illumio (Headquarters: California, USA; CEO: Andrew Rubin), a provider of microsegmentation solutions adopted by leading global enterprises.

This alliance aims to more easily implement enterprises' zero-trust strategies and minimize the impact of breaches. By combining TCS's proven track record in cybersecurity and infrastructure build-out, operation, and consulting with the Illumio Platform, featuring "Illumio Segmentation" and "Illumio Insights," the partnership will enable a shift to a system that identifies risks and immediately contains threats.

Overview of the Japan TCS and Illumio Partnership

• TCS's managed services will enable more efficient outsourcing of Illumio's strengths in one-click isolation and policy automation.

• Provide optimal engineering and consulting services for Illumio's implementation and operation across customers' network and cloud environments.

• Support customers' zero-trust strategies by integrating Illumio with TCS's wide range of solutions, including EDR (Endpoint Detection and Response), SASE (Secure Access Service Edge), identity platforms, and cloud platforms.

• Offer assessment and consulting for the implementation of enterprise microsegmentation and zero-trust strategies.

Specific Examples of Synergy between Japan TCS and Illumio

• Provide rapid integration of cloud-native Illumio to customers operating multi-cloud infrastructure, enhancing network visibility and resilience.

• Offer enhanced endpoint protection using Illumio and SOAR-driven automation to customers using TCS's managed security service TCS HaVEN™ for EDR and SIEM (Security Information and Event Management).

• Provide DevSecOps optimization through container-integrated microsegmentation to customers operating applications in Kubernates environments.

• Enhance security workflows and GRC (Governance, Risk, and Compliance) by integrating information obtained from Illumio for customers operating CMDB (Configuration Management Database) with ServiceNow.

"Assume Breach": Shifting from Prevention to Containment

In today's enterprise network environments, it is crucial to assume that cyberattacks will occur and to quickly identify and contain threats, preventing lateral movement. Illumio's "Illumio Insights" solution, based on an AI security graph, provides one-click isolation by leveraging Illumio Segmentation along with prioritized risk intelligence. Furthermore, the immediate application of policies by Illumio Segmentation reduces the scope of damage during an incident.

Kazuhisa Miyoshi, CISO and Head of Cybersecurity at Japan TCS, stated:

"In 2025, businesses learned the harsh reality of cyber threats. While not all breaches can be prevented, attacks can be contained before they become catastrophic. By combining TCS's transformative cybersecurity expertise with Illumio's AI-driven containment, we will stop lateral movement (an attack technique where attackers move horizontally within a network to gradually expand damage), protect critical operations, and build measurable cyber resilience."

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About Illumio

Illumio, a pioneer in ransomware and breach containment, is redefining the approach to enhancing cyberattack containment and operational resilience for enterprises and organizations. The Illumio Platform, powered by an AI security graph, identifies and contains threats across hybrid and multi-cloud environments, stopping the spread of attacks before they escalate into significant damage.

Illumio is recognized as a Leader in the microsegmentation category of the Forrester Wave™, supporting enterprises and organizations through zero-trust and enhanced cyber resilience in infrastructure and systems.

About Tata Consultancy Services Japan Ltd. (Japan TCS)

Japan TCS leverages IT and digital technologies to provide services and solutions across business, technology, and engineering domains. Based on a deep understanding of Japanese business practices and the strengths of Japanese companies, Japan TCS has established its unique "Japan-centric Delivery Model (JDM)" and supports Japanese customers' businesses with the proven knowledge and achievements of Tata Consultancy Services (TCS).

At various locations in Japan and the "Japan-centric Delivery Center (JDC)" in India, a total of 10,000 professional talents collaborate seamlessly, tackling various business challenges with flexible scalability and rich capabilities. With the vision of being a "Gateway to Globalization" and a "Catalyst for Technology-led Business Innovation," Japan TCS is committed to realizing its customers' purpose through business growth and transformation.

For more information about Japan TCS, please visit www.tcs.com.