Why Cybersecurity Must Serve the Business, Not Block It — Insights from Carl Froggett

In this episode of The Segment, host Raghu Nandakumara sits down with Carl Froggett, Chief Information Officer at Deep Instinct, the first company to apply end-to-end deep learning to cybersecurity.

With nearly three decades of experience — including over 20 years at Citi leading global infrastructure defense and cybersecurity services — Carl brings a rare, full-circle perspective on how the cyber landscape, leadership, and culture have evolved from the early 2000s to today’s AI-driven world.

You’ll learn:

• How Carl “accidentally” fell into cybersecurity — and what the early days of firewalls and compliance-driven security looked like
  
   
• What it was like to pioneer one of Citi’s first dedicated cyber teams
  
   
• Lessons in leadership from iconic figures like Charles Blauner, Greg Lavender, and John Miller
  
   
• How Citi became an early adopter of technologies like Palo Alto Networks, Splunk, CrowdStrike, and Illumio
  
   
• Why building business alignment and trust matters more than ever for CISOs
  
   
• How to frame security risks in business terms — and where many leaders go wrong
  
   
• The massive shift from machine learning to deep learning in cybersecurity
  
   
• How generative AI and “dark AI” are redefining the threat landscape — and why the next era of defense demands a mindset change
  
   

Packed with nostalgia, hard-won wisdom, and forward-looking insight, this episode bridges cybersecurity history, human leadership, and the AI-powered future ahead.

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For more information about Illumio, check out our website at illumio.com