The Cyber Security Matters Podcast17 Nov 2025

Deepfake Defence Alex Lisle on Protecting Reality - Cybersecurity Matters EP54

Join us for a fascinating conversation with Alex Lisle, CTO of Reality Defender, who brings 25 years of cybersecurity innovation to the fight against deepfakes and synthetic media manipulation.

We explore how Reality Defender's multi-modal approach is protecting enterprises, governments, and high-profile individuals from increasingly sophisticated synthetic media attacks.

Alex provides eye-opening examples of real-world deepfake attacks, including multi-million pound fraud schemes and nation-state disinformation campaigns, whilst offering practical insights on building effective defences.

Key Topics Discussed:

• The evolution from early internet hacking to modern cyber defence

• Reality Defender's multi-modal approach to deepfake detection

• Real-world examples of deepfake attacks and their impact

• The importance of content provenance and authenticity • Building vs buying security solutions in emerging threat landscapes • AI's limitations and biases in security decision-making

• The future of synthetic media and content verification

Chapters;

00:00 Introduction and Guest Welcome

00:55 Alex Lyle's Journey into Cybersecurity

04:38 The Evolution of Technology and Hacking

10:25 The Role of Curiosity and Problem-Solving in Cybersecurity

27:04 Navigating the Startup World vs. Multinational Corporations

27:53 The Rise of AI Manipulation and Deepfakes

31:14 Practical Implications and Real-World Examples

47:45 Future of AI: Creation vs. Detection

About Our Guest: Alex Lisle servs as CTO at Reality Defender, where he leads the technical strategy for detecting and preventing deepfake attacks. With over 25 years in cybersecurity, :

Company: https://www.realitydefender.com

The Cybersecurity Matters Podcast is brought to you by neuco, a global recruitment agency that specialises in sourcing brilliant people for groundbreaking companies.

Connect with Us: Website: [Cybersecurity Matters Podcast] LinkedIn: [Cybersecurity Matters] Host: Gia Thomas Co-Host: Matt Rose

#CybersecurityMatters #Podcast #SecurityLeadership

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