Defense in Depth

Defense in Depth

Defense in Depth, hosted by David Spark, Steve Zalewski, Geoff Belknap, and Edward Contreras, promises clear talk on cybersecurity's most controversial and confusing debates. Once a week we choose one controversial and popular cybersecurity debate and use the InfoSec community's insights to lead our discussion.

Episodes

August 20, 2026 35 mins

All links and images can be found on CISO Series

Check out this post from Caleb Sima of Whiterabbit for the discussion that is the basis of our conversation on this week's episode co-hosted David Spark, the producer of CISO Series, and Yaron Levi, CISO, Dolby. Joining is Adrian ...

Listen
Watch
Mark as Played

What Makes a Good AI Security Deployment?

A

Listen
Watch
Mark as Played
August 6, 2026 28 mins

All links and images can be found on CISO Series

Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Dan Walsh, CISO, Datavant. Joining is our sponsored guest, Elizabet...

Listen
Watch
Mark as Played

All links and images can be found on CISO Series

Prevention in cybersecurity is a lot like flossing: everyone knows they should do it, but few do it enough. What's stopping us?

Check out this post by Ro...

Listen
Watch
Mark as Played

All links and images can be found on CISO Series

Check out this post by Tomás Maldonado, CISO, NFL, for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Yaron Levi, CISO, Dolby. Joining is ...

Listen
Watch
Mark as Played

All links and images can be found on CISO Series

Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Steve Zalewski. Joining is their sponsored guest, Rajan Kapoor, vp, security, Material...

Listen
Watch
Mark as Played

All links and images can be found on CISO Series

Listen
Watch
Mark as Played

All links and images can be found on CISO Series

There are thousands of cybersecurity vendors across categories. If there's a gap in the market, it's likely not for technical reasons. So, how do you actually find vendors that are a good fit rather than one that just meets technical requirements?

<...

Listen
Watch
Mark as Played

All links and images can be found on CISO Series

Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and George Finney, CISO, University of Texas System. Joining is Sean Walls, CISO, Bob...

Listen
Watch
Mark as Played

What It Takes To Be Successful in Cyber Media

All links and images can be found on CISO Series

Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the ...

Listen
Watch
Mark as Played

All links and images can be found on CISO Series

Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Howard Holton, CEO, GigaOm. Joining is Tyler King, senior director - threat operation...

Listen
Watch
Mark as Played
June 4, 2026 33 mins

All links and images can be found on CISO Series

We think of cybersecurity as a discipline. But when do ideas like best practices and NIST frameworks change into a system of belief?

Check ...

Listen
Watch
Mark as Played

All links and images can be found on CISO Series

We know human-paced security controls can't be applied to autonomous AI agents. So what needs to change with CNAPP and cloud security?

Chec...

Listen
Watch
Mark as Played

All links and images can be found on CISO Series.

Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Steve Zalewski. Joining us is our guest, Paul Guerra.

Listen
Watch
Mark as Played

All links and images can be found on CISO Series

All security startups will tell you they talk to potential customers. The problem is that you limit your development when you only talk to CISOs who might buy. It's not the same guidance you'll get from a CISO who adv...

Listen
Watch
Mark as Played

All links and images can be found on CISO Series.

Check out this post

Listen
Watch
Mark as Played

All links and images can be found on CISO Series

Check out this post for the discussion that is the basis of our conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Steve Zalewski. Joining us is our sponsored guest, Heath Renfr...

Listen
Watch
Mark as Played

What Makes a Successful Security Vendor Demo?

All links and images can be found on CISO Series.

Check out this post from Adam Palmer for the discussion that is the basis of our conversati...

Listen
Watch
Mark as Played

Should You Use Native or 3rd Party Cloud Management Tools?

All links and images can be found on CISO Series.

Check out this post from Steve Zalewski for the discussion that is the basis o...

Listen
Watch
Mark as Played

How Should We Measure the Performance of a CISO?

All links and images can be found on CISO Series.

Check out this post from the cybersecurity subreddit for the discussion that is the basi...

Listen
Watch
Mark as Played

Popular Podcasts

    Betrayal Weekly is back for a new season. Every Thursday, Betrayal Weekly shares first-hand accounts of broken trust, shocking deceptions, and the trail of destruction they leave behind. Hosted by Andrea Gunning, this weekly ongoing series digs into real-life stories of betrayal and the aftermath. From stories of double lives to dark discoveries, these are cautionary tales and accounts of resilience against all odds. From the producers of the critically acclaimed Betrayal series, Betrayal Weekly drops new episodes every Thursday. If you would like to share your story, you can reach out to the Betrayal Team by emailing them at betrayalpod@gmail.com and follow us on Instagram at @betrayalpod and @glasspodcasts. Please join our Substack for additional exclusive content, curated book recommendations, and community discussions. Sign up FREE by clicking this link Beyond Betrayal Substack. Join our community dedicated to truth, resilience, and healing. Your voice matters! Be a part of our Betrayal journey on Substack.

    Stuff You Should Know

    If you've ever wanted to know about champagne, satanism, the Stonewall Uprising, chaos theory, LSD, El Nino, true crime and Rosa Parks, then look no further. Josh and Chuck have you covered.

    Dateline NBC

    Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com

    The Bobby Bones Show

    Listen to 'The Bobby Bones Show' by downloading the daily full replay.

    The Clay Travis and Buck Sexton Show

    The Clay Travis and Buck Sexton Show. Clay Travis and Buck Sexton tackle the biggest stories in news, politics and current events with intelligence and humor. From the border crisis, to the madness of cancel culture and far-left missteps, Clay and Buck guide listeners through the latest headlines and hot topics with fun and entertaining conversations and opinions.

Advertise With Us
Music, radio and podcasts, all free. Listen online or download the iHeart App.

Connect

© 2026 iHeartMedia, Inc.

  • Help
  • Privacy Policy
  • Terms of Use
  • AdChoicesAd Choices