Raghu Nandakumara
Raghu Nandakumara is Senior Director of Industry Solutions at Illumio based in London, UK, where he is responsible for helping customers and prospects through their segmentation journeys. Previously, Raghu spent 15 years at Citibank, where he held several network security operations and engineering roles.
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Authored content
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Women in Cybersecurity Share Their Top Leadership Lessons
Discover powerful leadership lessons from three women in cybersecurity as they share insights on mentorship, allyship, and breaking industry stereotypes.
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Dr. Larry Ponemon on Why Containment — Not Prevention — Is the Future of Cybersecurity
Learn from cybersecurity expert Dr. Larry Ponemon on why prevention is no longer enough and why containment, Zero Trust, and strong leadership are key to surviving modern ransomware attacks.
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The Business of Cybercrime: What a Former FBI Assistant Director Wants Every CISO to Know
Learn why CISOs must adopt a business-minded approach to cybersecurity and how Zero Trust can help close the gap between risk and resilience.
5 Things I Learned From a Former FBI Most-Wanted Hacker
Learn five eye-opening lessons from Brett Johnson, former most-wanted cybercriminal, on deception, trust, and why Zero Trust is more important than ever.
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What Nonprofits are Teaching the Cybersecurity Industry
Learn from nonprofit cybersecurity expert Dr. Kelley Misata on how mission-driven organizations are approaching security with empathy, purpose, and a listen-first mindset.
A Cyberpsychologist’s Take on Cybersecurity’s Culture of Blame
Learn how stress, AI threats, and human behavior make Zero Trust essential for cyber resilience.
Way Beyond Visibility: How Illumio Insights Connects Your Critical Security Dots
Learn why observability is critical to understanding and reducing cyber risk.
7 Practical Tips for CISOs Building Zero Trust from Netskope CISO Neil Thacker
Get insight from Netskope CISO Neil Thacker on the tips that can help security leaders and CISOs navigate the road to Zero Trust.
3 Cybersecurity Rules Microsoft’s Sherrod DeGrippo Lives By — And Why You Should Too
Get insight from Sherrod DeGrippo, Director of Threat Intelligence Strategy at Microsoft, on the three cybersecurity commandments that she believes should be guiding every cyber leader’s decisions and strategy.
Can Zero Trust Bridge the Cyber Equity Gap?
Learn from Nicole Tisdale, a leader in cyber policy, about how cybersecurity can protect both our institutions and the people they serve.
Preparing for DORA: Insights from 2 Cybersecurity Compliance Experts
Get insights from Tristan Morgan, managing director of cybersecurity at BT, and Mark Hendry, digital services partner at Evelyn Partners, on navigating DORA compliance.
How to Achieve DORA Compliance With Illumio
Learn the three tools available in the Illumio Zero Trust Segmentation (ZTS) Platform that will help you build DORA compliance.
Assume Breach.
Minimize Impact.
Increase Resilience.
Ready to learn more about Zero Trust Segmentation?