Welcome to another hard-hitting spin-off of The Defender’s Journal.

Today’s guest is Ryan Lindley - CEO of Aegis Cyber and one of the industry’s clearest thinkers when it comes to security leadership. From crashing school networks as a teen hacker to rebuilding billion-dollar organisations post-breach, Ryan brings sharp insight, zero fluff, and hard-earned lessons to this conversation.

In this episode, we dive into what separates tactical firefighting from real security strategy - and what most companies still get wrong about cyber maturity. We also explore how Ryan’s Military Academy experience shaped his mindset, why influence beats authority, and why he refuses to work with organisations that won’t take fundamentals seriously.

+ Interested in joining us on the show? Connect with either Jeff Harrod or Cameron Wenham on LinkedIn or via our website.

Welcome to Episode 31 of The Defender’s Journal.

This week, we’re joined by Matt Presson - a product-driven, context-obsessed security leader currently serving as CISO (Americas) at Bullish. From code reviews at FedEx to building global security functions across EY, B1, and now a regulated digital asset firm, Matt has seen cybersecurity from every angle.

We explore the three defining questions behind his leadership style: Why is context so important and can it mislead you? How do you embed security without creating resentment? And... what changes when you stop trying to do it all yourself?

+ Interested in joining us on the show? Connect with Cameron Wenham on LinkedIn or via our website.

Welcome to Episode 30 of The Defender’s Journal.

This week, we sit down with Cezary Piekarski - a global cybersecurity leader with decades of experience across the financial sector, national advisory roles, and the highest levels of organisational leadership!

In this conversation, Cezary unpacks the three steepest climbs in his leadership journey = from managing a team for the first time, to leading leaders, to becoming accountable for a distinct security domain. We explore how he builds clarity in complexity, why transparency and vulnerability are essential tools for influence, and what real humility looks like when you’re the one shaping global security culture...

+ Interested in joining us on the show? Connect with Cameron Wenham on LinkedIn or via our website.