CISO Series

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.

Author

CISO Series

Category

Technology

Podcast website

cisoseries.com

Latest episode

Jul 9, 2026

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Episodes

What Makes a Successful CISO? 13.06.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Christina Shannon , CIO, KIK Consumer Products . Joining us is our guest, Tomer Gershoni , CSO, Zoominfo . In this episode: Moving beyond technology The art...

We Want a Solution to Remediate, Not Just Detect Problems 06.06.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Yaron Levi , CISO, Dolby . Joining us is our guest, Neil Watkins , svp technology and cybersecurity services, i3 Verticals . In this episode: Visibility doe...

Recruiting from the Help Desk 30.05.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is our guest, Sasha Pereira , vp of infrastructure and CISO, WASH . In this episode: Is working...

How Do We Build a Security Program to Thwart Deepfakes? 23.05.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining us is our guest, Russ Ayers , svp of cyber & deputy CISO, Equifax . In this episode: Are we  seein...

Where Are Secure Web Gateways Falling Short? 16.05.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Steve Zalewski . Joining us is our sponsored guest, Vivek Ramachandran , founder, SquareX . In this episode: Are secure web gateways still an effective tool...

Understanding the Zero-Trust Landscape 09.05.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is our guest Richard Stiennon , chief research analyst, IT-Harvest. In this episode: In this ep...

Scaling Least Privilege for the Cloud 02.05.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining us is our sponsored guest, Sandy Bird , co-founder and CTO, Sonrai Security . In this episode: Why...

Should CISOs Be More Empathetic Towards Salespeople? 25.04.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is our guest, Emily Heath , general partner, Cyberstarts . In this episode: How do CISOs feel a...

Managing Data Leaks Outside Your Perimeter 18.04.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is our sponsored guest, Mackenzie Jackson , developer advocate, GitGuardian . In this episode:...

What Are the Risks of Being a CISO? 11.04.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is our guest, Phil Davis , attorney, healthcare cybersecurity and privacy, Hall Render . In thi...

Onboarding Security Professionals 04.04.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is our guest, Paul Connelly , former CISO, HCA Healthcare Got feedback? In this episode: How im...

How to Improve Your Relationship With Your Boss 28.03.2024

All links and images for this episode can be found on CISO Series . Check out this post Monte Pedersen of The CDA Group for the discussion that is the basis of our conversation on this week's episode co-hosted by me, David Spark ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn .  Joining us is our guest, Jerry Davis , division director for cyber defens...

Improving the Responsiveness of Your SOC 21.03.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Steve Zalewski . Joining me is our sponsored guest, Spencer Thompson , CEO, Prelude . In this episode: Why does it take so long to integrate new tools and g...

The Demand for Affordable Blue Team Training 14.03.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Steve Zalewski . Joining me is our guest, Ron Gula , president and co-founder, Gula Tech Adventures . In this episode: Why is it so darn expensive to get an...

Why are CISOs Excluded from Executive Leadership? 07.03.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is our guest, Ben Sapiro , head of global cyber security services, Manulife . In this episode:...

What Is Your SOC's Single Search of Truth? 29.02.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Steve Zalewski . Joining us is our sponsored guest, Matt Eberhart , CEO, Query . In this episode: Isn't the whole point of a single pane of glass making sen...

When Is Data an Asset and When Is It a Liability? 22.02.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is my guest, Mario Trujillo , staff attorney, Electronic Frontier Foundation . In this episode:...

Tracking Anomalous Behaviors of Legitimate Identities 15.02.2024

All links and images for this episode can be found on CISO Series . The Verizon DBIR found that about half of all breaches involved legitimate credentials. It's a huge attack surface that we're only starting to get a handle of. 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 ( @dspark ), the producer of CISO Series ,...

Why Do Cybersecurity Startups Fail? 08.02.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is our guest, Mike Levin , deputy CISO, 3M . In this episode: Why do security startups fail? Al...

Is "Compliance Doesn't Equal Security" a Pointless Argument? 01.02.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is our guest, Derek Fisher , Executive director of product security, JPMorgan . In this episode...

CISOs Responsibilities Before and After an M&A 25.01.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is our guest, Alexandra Landegger , Executive Director and CISO, Collins Aerospace . In this ep...

Use Red Teaming To Build, Not Validate, Your Security Program 18.01.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Steve Zalewski . Joining us is our sponsored guest, Richard Ford , CTO, Praetorian . In this episode: When did we all agree that red teaming was about valid...

The Do's and Don'ts of Approaching CISOs 11.01.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Steve Zalewski . Joining us is our guest, Adam Glick , CISO, PSG . In this episode: Vendors need to reach out to CISOs, but what does a successful approach...

Doing Third Party Risk Management Right 04.01.2024

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Geoff Belknap ( @geoffbelknap ), CISO, LinkedIn . Joining me is our guest, Erik Decker , CISO, Intermountain Health . In this episode: Why are we all strugg...

Warning Signs You're About To Be Attacked 14.12.2023

All links and images for this episode 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 ( @dspark ), the producer of CISO Series , and Steve Zalewski . Joining me is our sponsored guest, Trevor Hilligoss, senior director of security research, SpyCloud. In this episode: What are the things t...

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