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Artwork for Defense in Depth
Cybersecurity
CISO
Risk Management
Zero Trust
Artificial Intelligence
Vulnerability Management
Data Management
Third-Party Risk Management
Generative AI
Compliance
Asset Management
Threatlocker
Cisos
Social Engineering
Communication
Least Privilege
Hiring Practices
Ransomware
Phishing
Data Security

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.

PublishesWeeklyEpisodes363Founded7 years ago
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Artwork for Defense in Depth

Latest Episodes

What It Takes To Be Successful in Cyber Media

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 me, David Spark, the producer of C... more

YouTube

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 me, David Spark, the producer of CISO Series, and Howard Holton, CEO, GigaOm. Joini... more

YouTube

All links and images can be found on CISO Series

We think of cybersecurity as a discipline. But when do ideas like best practices and NIST frameworks change into a system of belief?

Check out this post for the discussion that is the basis of o... more

YouTube

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 o... more

YouTube

Key Facts

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Find out how many people listen to this podcast per episode and each month.

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Recent Guests

Howard Holton
CEO of GigaOm
GigaOm
Episode: CISOs Buy For Selfish and Politically Risk-Averse Reasons (Not Because Your Product is the Best)
Tyler King
Senior Director of Threat Operations and Response
Sinclair
Episode: CISOs Buy For Selfish and Politically Risk-Averse Reasons (Not Because Your Product is the Best)
Joshua Copeland
Director of Security at Crescendo
Crescendo
Episode: Has Cybersecurity Become a Cult?
Dan Benjamin
VP of Product Data Identity and AI Security at Palo Alto Networks
Palo Alto Networks
Episode: What Does the Next Generation of Cloud Security Look Like?
Paul Guerra
Former CISO, referred to as Doc X during introduction
Doc X
Episode: The Dangers of Picking the Wrong Vendor
Genevieve Bader
Executive at Starbucks discussing vendor vetting and contract regret
Starbucks
Episode: The Dangers of Picking the Wrong Vendor
Steve Jensen
CISO, University of Maine System
University of Maine System
Episode: Why Cyber Startups Need CISO Advisors
Heath Renfrow
Co-founder of Fenix24
Fenix24
Episode: How Do You Know If Your Backups Will Survive a Ransomware Attack?
Ken Beasley
BISO at Kaiser Permanente
Kaiser Permanente
Episode: What Makes a Successful Security Vendor Demo?

Hosts

David Spark
Host and producer; central figure in Defense in Depth, frequently leads discussions on strategy, governance, and vendor engagement
Steve Zalewski
Co-host; adds engineering and security operations viewpoints and frequent guest insights

Reviews

4.8 out of 5 stars from 152 ratings
  • Great show!

    Recently discovered David Sparks’ podcasts, and I can’t get enough. I end up chaining several in a row.

    Apple Podcasts
    5
    JD000000000000000
    United Statesa year ago
  • A superb cybersecurity podcast!

    There is very little else to say. Give it a listen.

    Apple Podcasts
    5
    -CCDeYapp
    United Statesa year ago
  • Best cybersecurity podcast out there!

    I listen or have listened to virtually every cybersecurity podcast out there and this one is my favorite by far! Well done folks!

    Apple Podcasts
    5
    Shay Ch
    United States4 years ago
  • Love David’s shows

    David always has great topics and guests. I listen to other security podcasts where there’s only one person speaking…man they’re boring! Not David’s! Always engaging!

    Apple Podcasts
    5
    John Haden
    United States5 years ago
  • Value Added

    If you aren’t listening to these podcasts what are you even doing with your life. Security professionals add value to your core knowledge with these daily injections of absolutely vital industry knowledge and trends.

    Apple Podcasts
    5
    roselinevelee
    United States5 years ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

The show is considered a top resource for security leadership and real-world implications of cybersecurity decisions.
Listeners praise practical, actionable security guidance from hosts and guests.
Guests and hosts are described as engaging and knowledgeable, delivering in-depth discussions.

Chart Rankings

How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.

Apple Podcasts
#163
France/Technology
Apple Podcasts
#35
Saudi Arabia/Technology
Apple Podcasts
#78
Mexico/Technology
Apple Podcasts
#165
Israel/Technology
Apple Podcasts
#200
Finland/Technology
Apple Podcasts
#235
Philippines/Technology

Talking Points

Recent interactions between the hosts and their guests.

What Does the Next Generation of Cloud Security Look Like?
Q: Steve, what will the new SOC look like when AI agents are writing code and responding at machine speed?
The new SOC needs to blend AI-assisted visibility with foundational controls, expanding beyond traditional vulnerability management to include AI-driven incident response, detection engineering, and governance, all while maintaining human oversight and clear ownership.
What Does the Next Generation of Cloud Security Look Like?
Q: What are the things we need to be thinking about when we're dealing with machine fighting machines, Dan?
The discussion centers on integrating AI into security workflow, focusing on securing code at inception, automating remediation, and creating governance that scales with agent speed, while acknowledging limits of current models and the need for visibility into AI agents' actions.
Why Cyber Startups Need CISO Advisors
Q: First, Eddie, do you agree? Have you ever advised startups? And why do you see this as essential?
Eddie confirms that advisory input provides a necessary critique beyond customer feedback, helping startups uncover blind spots and push back on assumptions to shape a product that is viable in real security ecosystems.
Who is Responsible for the Conflict Between Security and Developers?
Q: What is driving the tension between security and development from a leadership perspective?
Leadership incentives and the way organizations measure outcomes shape security and development behaviors more than any single tool or policy.
Don't Try to Win with Technical Expertise. Win by Partnering.
Q: Is this behavior required of all security professionals?
While technical accuracy is vital among security professionals, as they transition to engaging with the wider business, the focus should shift towards influence and building consensus.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

Listeners per Episode
Gender Skew
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Frequently Asked Questions About Defense in Depth

What is Defense in Depth about and what kind of topics does it cover?

Defense in Depth trades in-depth discussions on controversial and high-stakes cybersecurity topics with practical takes from CISOs, security leaders, and industry practitioners. Episodes commonly explore advisory roles for startups, vendor demos, cloud security governance, metrics for security leadership, and how to run security programs more effectively in collaboration with business teams. A recurring pattern is the blend of strategic framing (risk, governance, and organizational impact) with concrete, real-world guidance (backups testing, remediation metrics, tool selection, and enablement of developers). Notably, sponsor integrations are a regular, contextually relevant part of conversations, and guests range from CISOs at large organiz... more

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To see how many followers or subscribers Defense in Depth has on Spotify and other platforms such as Castbox and Podcast Addict, simply upgrade your account. You'll also find viewership figures for their YouTube channel if they have one.

Which podcasts are similar to Defense in Depth?

These podcasts share a similar audience with Defense in Depth:

1. CISO Series Podcast
2. Cybersecurity Headlines
3. Cybersecurity Today
4. CyberWire Daily
5. SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

How many episodes of Defense in Depth are there?

Defense in Depth launched 7 years ago and published 363 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

How do I contact Defense in Depth?

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What guests have appeared on Defense in Depth?

Recent guests on Defense in Depth include:

1. Howard Holton
2. Tyler King
3. Joshua Copeland
4. Dan Benjamin
5. Paul Guerra
6. Genevieve Bader
7. Steve Jensen
8. Heath Renfrow

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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