PodcastsNewsDefense in Depth

Defense in Depth

David Spark, Steve Zalewski, Geoff Belknap
Defense in Depth
Latest episode

360 episodes

  • Defense in Depth

    What Does the Next Generation of Cloud Security Look Like?

    2026-05-28 | 33 mins.
    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?
    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, Dan Benjamin, vp product - data, identity, and AI security, Palo Alto Networks.
    In this episode:
    The detection ceiling
    A category gap, not a feature gap
    Resilience by design
    An insider threat with no face
    A huge thanks to our sponsor, Palo Alto Networks

    Cortex Cloud unifies code, cloud, and SOC on a single data, risk, and control plane — giving teams the context, workflows, and agentic intelligence to turn risk into resolution. Native AI agents investigate and act within enterprise guardrails, delivering real-time protection from workload to network edge. Cloud security that outpaces machine-speed threats. Visit Palo Alto Networks and search cortex cloud.
  • Defense in Depth

    The Dangers of Picking the Wrong Vendor

    2026-05-21 | 26 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 Steve Zalewski. Joining us is our guest, Paul Guerra.
    In this episode:
    Read the contract
    How vendors win before the evaluation ends
    The fallout
    The real cost
    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.
  • Defense in Depth

    Why Cyber Startups Need CISO Advisors

    2026-05-14 | 26 mins.
    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 advises.
    Check out this post by Val Tsanev of the Cyber Risk Alliance for the discussion that is the basis of our conversation.
    This week's episode is co-hosted by me, David Spark, the producer of CISO Series, and Edward Contreras, senior evp and CISO, Frost Bank. Joining us is Steve Jensen, CISO, University of Maine System.
    In this episode:
    Building for whom?
    The only feedback loop that matters
    Valid, but for whom?
    Rethink the advisor roster
    A huge thanks to our sponsor, Material Security

    Legacy email security only watches the door. Material protects your entire cloud workspace—email, files, and accounts—as one ecosystem. It's more coverage for less than the cost of a legacy SEG. One price, no surprises: just security that covers the whole surface area. Learn more at material.security.
  • Defense in Depth

    Breaking the Reactive Cycle of Cybersecurity

    2026-05-07 | 31 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 Steve Zalewski. Joining us is our sponsored guest, Rob Allen.
    In this episode:
    The vulnerable stack
    Changing the structural economics
    Change the terrain
    The cost-benefit equation
    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.
  • Defense in Depth

    How Do You Know If Your Backups Will Survive a Ransomware Attack?

    2026-04-30 | 38 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 Steve Zalewski. Joining us is our sponsored guest, Heath Renfrow, co-founder, Fenix24.
    In this episode:
    Knowing which systems to save first
    Recovery is a business conversation, not an IT ticket
    Not all systems are created equal
    Recovery knowledge as a governed asset
    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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About 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.
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