CISO Series Podcast

All links and images can be found on CISO Series
This week's episode is hosted by me, David Spark, the producer of CISO Series, and Geoff Belknap. Joining us is our sponsored guest Ryan Lloyd, chief product officer, GuardSquare.
In this episode:
Determinism was never the point
Every MCP server is an uncontracted vendor
Mobile security, the version everyone's tired of hearing
Architectural vanity
A huge thanks to our sponsor, Guardsquare

Guardsquare delivers mobile app security without compromise, providing advanced protections for both Android and iOS apps. From app security testing to code hardening to real-time visibility into the threat landscape, Guardsquare solutions provide enhanced mobile application security from early in the development process through publication. Learn more about how to protect your app at Guardsquare.com.

All links and images can be found on CISO Series
This week's episode is hosted by me, David Spark, producer of CISO Series and Andy Ellis, principal of Duha. Joining us is Aaron Stanley, former vp of security, DBT Labs.
In this episode:
Saying no just hides the agent
Communication is not a side project
Even OpenAI can't buy enough coverage
Identity governance beats the illusion of control
A huge thanks to our sponsor, Arctic Wolf

Security leaders need to reduce complexity, strengthen resilience, and prove value. Arctic Wolf's Security Operations ROI Calculator helps estimate operational value, potential risk exposure reduction, and projected payback based on your environment. See what a modern, AI-powered security operations model could mean for your business at arcticwolf.com/CISO today, right now.

All links and images can be found on CISO Series
This is a bonus episode of our brand new podcast, Super Cyber Friday Express — a 20-minute highlight version of our live one-hour show we do every available Friday at 1 p.m. Eastern.
In this episode, David Spark is joined by Karl Mattson, founder and managing director of Squared Circle Ventures, and Howard Holton, founder and principal analyst at Phronia Counsel LLC, to discuss how your existing environment shapes what you buy next — and whether that's a strategy or just inertia.
Watch the full one-hour show at Crowdcast.
Subscribe to Super Cyber Friday Express, or any show on CISO Series, at CISOseries.com/subscribe.

All links and images can be found on CISO Series
This week's episode is hosted by me, David Spark, producer of CISO Series and Andy Ellis, principal of Duha. Joining us is Gina Ciavarro, former managing director of infrastructure and CISO at Accordion.
In this episode:
Patching won't evict a squatter
Boards accept risk by saying nothing
Fast enough to hide the damage
Job posting for a unicorn
A huge thanks to our sponsor, Arctic Wolf

Security leaders need to reduce complexity, strengthen resilience, and prove value. Arctic Wolf's Security Operations ROI Calculator helps estimate operational value, potential risk exposure reduction, and projected payback based on your environment. See what a modern, AI-powered security operations model could mean for your business at arcticwolf.com/CISO today, right now.

All links and images can be found on CISO Series
This week's episode is hosted by me, David Spark, producer of CISO Series and Steve Zalewski. Joining us is Varsha Agrawal, head of information security, Prosper Marketplace.
In this episode:
Lock-in was never about the tech
The board wants a green light, not a lesson
Time was never the constraint
What founders keep getting wrong about security
A huge thanks to our sponsor, Vanta

No, it's not your imagination. Risk and regulations ARE ramping up—and customers now expect proof of security just to do business. That's why Vanta is a game-changer. Vanta automates your compliance process and brings compliance, risk, and customer trust together on one AI-powered platform. So whether you're prepping for a SOC 2 or running an enterprise GRC program, Vanta keeps you secure—and keeps your deals moving. Companies like Ramp and Writer spend 82% less time on audits with Vanta. That's not just faster compliance—it's more time for growth. Get started at Vanta.com/CISO.