Defense in Depth
Hosted by David Spark and Edward Contreras and Steve Zalewski and Howard Holton and Yaron Levi · CISO Series
4.8from 105 ratings
- 376
- Episodes
- 133
- Transcribed
- 105
- Ratings
- Daily
- Cadence
- 2019
- First episode
- 355K
- YouTube views
About 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.
- Publisher
- CISO Series
- Category
- news · technology
- Language
- en
- Explicit
- No
- First episode
- 21 Jan 2019
- Latest episode
- 21 Sept 2026
Latest episodes
133 of 376 episodes have a transcript.
21 Sept 2026TRANSCRIPT
BONUS EPISODE: Super Cyber Friday Express - Hacking Vendor Selection
17 Sept 2026TRANSCRIPT
How AppSec Needs to Change For the Speed of AI
10 Sept 2026TRANSCRIPT
Building Resilience for Microsoft 365
Inside a recent episode
BONUS EPISODE: Super Cyber Friday Express - Hacking Vendor Selection
Published 21 Sept 2026 · Transcript excerpt
[…] And every company I go to that has the potential to buy from them, I call Billy and I go, hey, this is what I'm doing. Who do I need to talk to to tell them to assign you to my account? And if they don't assign Billy, cool, we're done. Because it already shows that you don't understand the fundamental job of sales is not to close deals. That's what you want from them. Their job is to establish trust with me because people buy from people they like. And I've had Billy unsell me from something. I called and I said, hey, I need this thing. It actually has this thing. And he goes, yeah, don't buy it. […]
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See plansWho has been a guest on Defense in Depth
Names identified in recent episode analyses. Showing up to five guests.
- Karl Mattson
- Ryan Barrett
- Simon Hughes
- Jill Rhodes
- Mary Rose Martinez
Reach and audience
Public platform figures. Ratings count people who left a rating, not total listeners.
- YouTube views
- 355,113
- Score snapshot 15 Sept 2025
- Apple Podcasts (US)
- 4.8 / 5
- 77 ratings
- Spotify
- 4.8 / 5
- 28 ratings
Podcast Authority Score: 80 / 100
A composite of feed quality, social presence, YouTube performance and engagement. Read the methodology.
- Quality
- 87
- Social presence
- 0
- YouTube
- 86
- Engagement
- 98
Pitching Defense in Depth
- Guest appearances
- Books guests
Based on episode analysis; this does not confirm that the show is currently accepting pitches.
Shows with a similar audience
Questions about Defense in Depth
Who hosts Defense in Depth?
David Spark and Edward Contreras and Steve Zalewski and Howard Holton and Yaron Levi host the show. Published by CISO Series.
How often do new episodes come out?
The show publishes daily, based on its RSS feed.
Does Defense in Depth take guests?
Yes. Guests have been identified in episode analyses.
Where can I read transcripts?
133 of 376 episodes have a transcript on Pod Engine. Full transcripts are available with a Pod Engine plan.
Host of Defense in Depth?
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