The Defender's Journal

Welcome to Episode 36 of The Defender’s Journal!
This week, Kevin Fielder joins us - CISO at NatWest Boxed, operating at the intersection of embedded finance, cloud-native banking and real-world security trade-offs...
In this episode, we explore what it takes to secure a banking platform that sits behind major consumer brands, why “yes, but safely” beats defaulting to no, and how AI is changing the way teams need to think about trust, verification and risk. Kevin also shares why great security leadership is rarely about fixing everything at once - it’s about understanding what matters most, and moving the business forward without losing control.
+ Interested in joining us on the show? Connect with Cameron Wenham on LinkedIn or via our website.

Welcome to another special crossover episode of The Defender’s and Disruptor’s Journal!
This week, Lee Rossey joins us - CTO and Co-Founder of SimSpace, a company helping organisations prove whether their teams, tools and AI agents can perform under real-world pressure.
In this episode, we explore why cyber readiness can no longer rely on assumptions, vendor claims or controlled lab results. Lee breaks down the value of high-fidelity cyber ranges, AI proving grounds and digital twin-style environments - and why the future of security may depend on testing machine-speed responses before they ever reach production…
+ Want to be part of the journey? Connect with host Cameron Wenham or explore both shows via our website!

Welcome to another special crossover episode of The Defender’s and Disruptor’s Journal!
This week, Matt Moynahan joins us - CEO of GetReal and a leader focused on one of the most urgent questions in security: what happens when identity itself can be fabricated in real time?
In this episode, we explore why traditional security stacks were never designed for a world of synthetic media, deepfake detection and forensic verification. Matt breaks down where enterprise failures are already emerging - from candidate fraud and account takeover to executive impersonation - and why the next decade of security may depend on restoring trust to digital communication itself.
+ Want to be part of the journey? Connect with host Cameron Wenham or explore both shows via our website!

Welcome to another special crossover episode of The Defender’s and Disruptors’ Journal.
This week, Rick Caccia joins us - CEO of WitnessAI and former CMO at companies including Palo Alto Networks and Google Cloud. Having spent three decades shaping how major technology markets are understood, Rick is now building in one of the fastest-moving spaces of all: safe enterprise AI adoption.
In this episode, we explore why most organisations are still struggling to understand how AI is really being used, why “blocking everything” creates a false sense of control, and how WitnessAI shifted from a fear-led security message to solving the far less glamorous - but far more urgent - problem of AI compliance, visibility and governance.
+ Want to be part of the journey? Connect with host Cameron Wenham or explore both shows via our website!

Welcome to Episode 35 of The Defender’s Journal!
This week, Omkhar Arasaratnam joins us - a Distinguished Engineer at LinkedIn whose career has taken him from factory work and DJ’ing to leading cyber and engineering functions across IBM, Deutsche Bank, Credit Suisse, JPMorgan and Google.
In this episode, we explore why careers are rarely ladders, the difference between advisors and operators, and what changes when you build security into systems serving millions of users. Omkhar also reflects on analysis paralysis, mentorship, and the mindset that turns every day into a “bonus round”.
You can find more from Omkhar at omkhar.net and learn about his scholarship work at skscholarship.com.
+ Interested in joining us on the show? Connect with Cameron Wenham on LinkedIn or via our website.