Defense in Depth cover art

Defense in Depth

Defense in Depth

By: David Spark Steve Zalewski Geoff Belknap
Listen for free

About this listen

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
  • Sales Follow Up Sequences: What Works Best in Cyber?
    Oct 23 2025

    All links and images can be found on CISO Series.

    Check out this post by Mike Gallardo 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 them is Alex Guilday, BISO, Royal Caribbean Group.

    In this episode:

    • Timing the approach
    • When persistence becomes harassment
    • Playing the long game
    • The necessity argument

    Huge thanks to our sponsor, Cyera

    AI is moving fast - can your security keep up? Join the leaders shaping the future of data and AI security at DataSecAI Conference 2025, hosted by Cyera, Nov 12–13 in Dallas. Register now at https://datasecai2025.com/did.

    Show More Show Less
    28 mins
  • What Soft Skills Do You Need in Cyber?
    Oct 16 2025

    All links and images can be found on CISO Series.

    Check out this post by Evgeniy Kharam 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 them is Ryan Dunn, Leader of Product and Supply Chain Technology, Specialized Bicycle Components.

    And check out "Architecting Success: The Art of Soft Skills in Technical Sales: Connect to Sell More" by Evgeniy Kharam we referenced in this episode.

    In this episode:

    • Beyond the technical playbook
    • Influencing without authority
    • Partnering, not just selling
    • The deliberate work of connection

    Thanks to our sponsor, HackerOne

    Show More Show Less
    25 mins
  • What is the Visibility That Security Teams Need?
    Oct 9 2025

    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 Bil Harmer, security advisor, Craft Ventures. Joining them is James Bruce, business security services director, WPP.

    In this episode:

    • Turning visibility into actionable intelligence
    • Pure visibility still provides an essential security foundation
    • Finding strategic value
    • The risk of gaps in identity management

    Huge thanks to our sponsor, ThreatLocker

    Show More Show Less
    28 mins
No reviews yet
In the spirit of reconciliation, Audible acknowledges the Traditional Custodians of country throughout Australia and their connections to land, sea and community. We pay our respect to their elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.