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Defense in Depth

Defense in Depth 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.

Podcast · By David Spark, Steve Zalewski, Geoff Belknap · English · Official site

Indexed episodes, last 90 days
12
Latest publication
Sep 21, 2026
Audience
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Earliest in this view
Jul 9, 2026

Latest episodes

  1. Episode · Sep 21, 2026

    BONUS EPISODE: Super Cyber Friday Express - Hacking Vendor Selection (opens the original)

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    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

  2. Episode · Sep 17, 2026

    How AppSec Needs to Change For the Speed of AI (opens the original)

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    All links and images can be found on CISO Series Check out this post by Anand Singh, CSO, Symmetry Systems, 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 Steve Zalewski . Joining us is Ryan Barrett , svp, security, Intermedia Cloud Communications . In this episode: Risk by default, not by decision Identity, not just speed Building security into the pipeline, not around it Letting the machine make t

  3. Episode · Sep 10, 2026

    Building Resilience for Microsoft 365 (opens the original)

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    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 Brett Conlon , CISO, American Century Investments . Joining us is our sponsored guest, Simon Hughes , vp of field security at CoreView . In this episode: Ecosystem, not platform Beyond backup, into resilience What survives the restore Toward a digital twin A huge thanks to our sponsor,

  4. Episode · Sep 3, 2026

    Recommendations to Reboot the Security Vendor Pitch (opens the original)

    Episode notes · Neutral tone

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    All links and images can be found on CISO Series Check out this post by Val Tsanev of CyberRisk Alliance, 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 Edward Contreras , senior evp and CISO, Frost Bank . Joining is Jill Rhodes , svp, CISO, Option Care Health . In this episode: The ten-minute test Relevance beats format Price the problem or lose the room Whose meeting is it, really A huge thanks to our

  5. Episode · Aug 27, 2026

    Market Confusion Is Responsible for the Biggest Gaps in Cybersecurity (opens the original)

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    All links and images can be found on CISO Series Check out this post from Joe Head of RELEX Solutions 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 Edward Contreras , senior evp and CISO, Frost Bank . Joining is Mary Rose Martinez , CISO, and vp of digital technology services, Marathon Petroleum Corporation . In this episode: Left behind A hypothetical sale The philosophy problem Stop shifting the prob

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