The Defender's Journal

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.

Welcome to another special crossover episode of The Defender’s and Disruptors’ Journal.
Today’s guest is Damon Kachur, CEO of SecureG - a leader who has spent over two decades building the invisible infrastructure that digital trust depends on, from issuing billions of device identities to securing the networks behind telecom, IoT and critical systems.
In this episode, we explore what it really means to build trust at scale - from the early days of PKI and stopping large-scale fraud, to the future of quantum-resistant cryptography and machine identity. Damon also shares his mindset as a leader under pressure, why trust infrastructure is still misunderstood at board level, and how the next wave of AI and connected systems will redefine identity entirely...
+ Want to be part of the journey? Connect with host Cameron Wenham or explore both shows via our website!

Welcome to Episode 34 of The Defender’s Journal!
This week, George Totev joins us - a CISO who has spent over 20 years operating at the intersection of regulation, product and real-world risk, building and scaling security and compliance functions across organisations like Goldman Sachs, Visa and Atlassian...
In this episode, we explore how security leaders should think about trade-offs at scale - from balancing prevention vs reaction, to understanding diminishing returns in security investment, and why incident management is ultimately the last line of defence. George also touches on how to communicate risk effectively to boards - not through theory, but through cost, consequence and real-world impact.
+ Interested in joining us on the show? Connect with Cameron Wenham on LinkedIn or via our website.