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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
Asset Management
Threatlocker
Compliance
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.

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Artwork for Defense in Depth

Latest Episodes

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

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

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 gues... more

YouTube

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 ... more

YouTube

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Recent Guests

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?
Gal Ordo
Co-founder and CPO of Native
Native
Episode: Should You Use Native or 3rd Party Cloud Management Tools?
Jason Richards
Vice President of Information Security at CHG Healthcare
CHG Healthcare
Episode: How Should We Measure the Performance of a CISO?
Adam Palmer
CISO of First Hawaiian Bank
First Hawaiian Bank
Episode: How to Engage With a CISO When They Express Interest
Matt Brown
Solutions Architect at Endor Labs
Endor Labs
Episode: Who is Responsible for the Conflict Between Security and Developers?

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
#200
United States/Technology
Apple Podcasts
#244
France/Technology
Apple Podcasts
#80
Ireland/Technology
Apple Podcasts
#121
Israel/Technology
Apple Podcasts
#146
Colombia/Technology
Apple Podcasts
#157
United Arab Emirates/Technology

Talking Points

Recent interactions between the hosts and their guests.

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.
How Should CISOs Talk to the Business
Q: How do you maintain the conversation to ensure that the security measures are understood and followed up on?
It's essential to explain technology and its business implications in comprehensible terms, maintaining consistent communication about what has been agreed upon and its impact.
How Should CISOs Talk to the Business
Q: What do you think are the sort of the variables the CISO needs to be able to influence?
Understanding what's important to the person you're talking to, as their priorities may differ, and tailoring your communication accordingly is crucial.

Audience Metrics

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

Listeners per Episode
Gender Skew
Location
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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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How many listeners does Defense in Depth get?

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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 361 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. Paul Guerra
2. Genevieve Bader
3. Steve Jensen
4. Heath Renfrow
5. Ken Beasley
6. Gal Ordo
7. Jason Richards
8. Adam Palmer

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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