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Defense in Depth

Defense in Depth

By: David Spark Steve Zalewski Geoff Belknap
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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.2018-2024 Spark Media Solutions, LLC Politics & Government
Episodes
  • What Makes a Successful Security Vendor Demo?
    Apr 23 2026

    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 conversation on this week's episode co-hosted by David Spark, the producer of CISO Series, and Geoff Belknap. Joining is Ken Beasley, BISO, Kaiser Permanente.

    In this episode:

    • Show me the problem, not the product
    • Walking in blind
    • Discovery is the demo
    • Define the use case, set the clock

    A huge thanks to our sponsor, Fenix24

    Fenix24 is the world's leading breach recovery firm, providing rapid ransomware restoration, full asset visibility, and threat informed hardening. Alongside expert recovery services, Fenix24 delivers ongoing managed protection that secures backups, infrastructure, and critical controls, helping organizations stay resilient, recoverable, and prepared for modern cyber threats. Learn more at fenix24.com.

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    27 mins
  • Should You Use Native or 3rd Party Cloud Management Tools?
    Apr 16 2026

    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 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 us is their sponsored guest, Gal Ordo, co-founder and CPO, Native.

    In this episode:

    • More tools, more problems
    • A gap in design
    • Catching what slips through
    • Competence over complexity

    A huge thanks to our sponsor, Native Security

    Native makes secure-by-design inherent to how the cloud operates. It's the control plane for built-in cloud security, unifying and governing native controls, so security intent is defined once and applied consistently across providers. Learn more at native.security.

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    28 mins
  • How Should We Measure the Performance of a CISO?
    Apr 9 2026

    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 basis of our conversation on this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining them is Jason Richards, vp, information security, CHG Healthcare.

    In this episode:

    • Likability as a career strategy
    • The storytelling gap
    • How the math actually gets done
    • The unofficial scorecard

    A huge thanks to our sponsor, ThreatLocker

    ThreatLocker makes Zero Trust practical. With Default Deny, Ringfencing, and Elevation Control, CISOs get real control that's easy to manage and built to scale. Stop threats before they execute and reduce operational noise without adding complexity. See how simple prevention can be at ThreatLocker.com/CISO.

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    29 mins
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