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Defense in Depth

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Rating
★★★★★
4.8
from
77 reviews
This podcast has
382 episodes
Language
English
Date created
2019/01/21
Latest episode
2026/10/22
Average duration
30 min.
Release period
7 days

Description

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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Check latest episodes from Defense in Depth podcast


How Do You Demonstrate Resilience?
2026/10/22
All links and images can be found on CISO Series Check out this post for the discussion that is the basis of our conversation for 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 their sponsored guest, Snehal Antani, CEO, Horizon3.ai. In this episode: Metrics that show risk actually declining Knowing which altitude you're talking to Recoverability over control checklists Proof the program outlives any one person A huge thanks to our sponsor, Horizon3.ai Is your organization actually secure, or do you just hope it is? Horizon3's NodeZero® autonomously tests your defenses, finds real attack paths, and verifies that your fixes actually work. In an era of AI-powered attacks, don't assume you're secure. Prove it. Learn more at horizon3.ai/cisoseries
How Should Security Be Architected for Human Error?
2026/10/15
All links and images can be found on CISO Series We've all internalized that humans are the weak link in cybersecurity. Why do we not account for that when we're building our cybersecurity programs? 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 Geoff Belknap. Joining them is their sponsored guest, Kieran Human, lead cybersecurity engineer, ThreatLocker. In this episode: Humans and automation checking each other Assume the click happens Catch it in the moment Take the manual step out entirely A huge thanks to our sponsor, ThreatLocker An AI-generated attack may be new, but it still needs to execute, access data, and move through your environment. ThreatLocker applies enforceable controls at each of those points, limiting what attackers can do regardless of how their code was created. Book a demo at threatlocker.com/ciso.
Can SMBs Get the Same Security as Everyone Else?
2026/10/08
All links and images can be found on CISO Series Check out this post for the discussion that is the basis of our conversation for this week's episode co-hosted by me, David Spark, the producer of CISO Series, and Steve Zalewski. Joining us is their sponsored guest, Mark Stockley, cybersecurity evangelist, ThreatDown. In this episode: The ripple effect The economics of ignoring SMB Let the defaults do the work Accountability doesn't get outsourced A huge thanks to our sponsor, ThreatDown ThreatDown MDR is a 24/7/365 security analyst service that explains and resolves suspicious endpoint events. Our team of cybersecurity experts delivers proactive monitoring, investigation, and remediation, catching threats before they escalate. With ThreatDown's always-on protection, organizations gain peace of mind and safeguard their data, reputation, and finances - backed by real analyst expertise, not just automation. Learn more at threatdown.com
Why Do We Keep Complaining About the Same Issues in Cybersecurity?
2026/10/01
All links and images can be found on CISO Series LinkedIn used to have a decent reputation among cybersecurity professionals. But lately, it feels like our feeds are relitigating the same debates every day, just with different faces. Has the situation changed? Check out this post by Allan Alford of NTT Global Data Centers 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 Geoff Belknap. Joining us is Howard Holton, founder, Phronia Counsel. In this episode: The clichés that say nothing A discipline without shared answers Old topics, new lenses A people problem, not a security problem A huge thanks to our sponsor, Teleskope Most DSPMs stop at finding the risk. Teleskope fixes this: it automatically finds sensitive data, including IP documents or board decks, and remediates exposure across cloud, SaaS, and AI environments natively, with human-in-the-loop controls, improving your team's efficiency tenfold. Trusted by Ramp, Polymarket, and Chevron Phillips, and more. teleskope.ai
Securing AI-Generated Open Source Code
2026/09/24
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 Steve Zalewski. Joining us is our sponsored guest, Abby Kearns, CEO, ActiveState. In this episode: Trust, but nobody verifies The economics of trust just changed Implicit trust doesn't scale anymore Rethinking what "open" even means A huge thanks to our sponsor, ActiveState ActiveState gives security and engineering teams a single governed source for open source software. With 79 million components built from source, continuously remediated, and delivered directly into the tools teams already use, ActiveState eliminates the CVE backlog and the developer toil that comes with it. Companies see a 60 to 99% reduction in CVEs and reclaim up to 30% of developer time. Learn more at activestate.com.
BONUS EPISODE: Super Cyber Friday Express - Hacking Vendor Selection
2026/09/21
All links and images can be found on CISO Series This is a bonus episode of our brand new podcast, Super Cyber Friday Express — a 20-minute highlight version of our live one-hour show we do every available Friday at 1 p.m. Eastern. In this episode, David Spark is joined by Karl Mattson, founder and managing director of Squared Circle Ventures, and Howard Holton, founder and principal analyst at Phronia Counsel LLC, to discuss how your existing environment shapes what you buy next — and whether that's a strategy or just inertia. Watch the full one-hour show at Crowdcast. Subscribe to Super Cyber Friday Express, or any show on CISO Series, at CISOseries.com/subscribe.
How AppSec Needs to Change For the Speed of AI
2026/09/17
All links and images can be found on CISO Series Check out this post by Anand Singh, CSO, Symmetry Systems, 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 Steve Zalewski. Joining us is Ryan Barrett, svp, security, Intermedia Cloud Communications. In this episode: Risk by default, not by decision Identity, not just speed Building security into the pipeline, not around it Letting the machine make the fix A huge thanks to our sponsor, ThreatLocker An AI-generated attack may be new, but it still needs to execute, access data, and move through your environment. ThreatLocker applies enforceable controls at each of those points, limiting what attackers can do regardless of how their code was created. Book a demo at threatlocker.com/ciso.
Building Resilience for Microsoft 365
2026/09/10
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 Brett Conlon, CISO, American Century Investments. Joining us is our sponsored guest, Simon Hughes, vp of field security at CoreView. In this episode: Ecosystem, not platform Beyond backup, into resilience What survives the restore Toward a digital twin A huge thanks to our sponsor, CoreView Attackers don't break into Microsoft 365. They log in and reconfigure it. When tenant configurations drift or get tampered with, recovery can take weeks and missed settings can reopen the door. The Cyber Resilience Framework for Microsoft 365 covers the five pillars, harden, govern, detect, respond, recover, and shows exactly where today's tools leave gaps. Download the free practical guide
Recommendations to Reboot the Security Vendor Pitch
2026/09/03
All links and images can be found on CISO Series Check out this post by Val Tsanev of CyberRisk Alliance, 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 is Jill Rhodes, svp, CISO, Option Care Health. In this episode: The ten-minute test Relevance beats format Price the problem or lose the room Whose meeting is it, really A huge thanks to our sponsor, Teleskope Most DSPMs stop at finding the risk. Teleskope fixes this: it automatically finds sensitive data, including IP documents or board decks, and remediates exposure across cloud, SaaS, and AI environments natively, with human-in-the-loop controls, improving your team's efficiency tenfold. Trusted by Ramp, Polymarket, and Chevron Phillips, and more. teleskope.ai
Market Confusion Is Responsible for the Biggest Gaps in Cybersecurity
2026/08/27
All links and images can be found on CISO Series Check out this post from Joe Head of RELEX Solutions 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 is Mary Rose Martinez, CISO, and vp of digital technology services, Marathon Petroleum Corporation. In this episode: Left behind A hypothetical sale The philosophy problem Stop shifting the problems A huge thanks to our sponsor, ActiveState ActiveState gives security and engineering teams a single governed source for open source software. With 79 million components built from source, continuously remediated, and delivered directly into the tools teams already use, ActiveState eliminates the CVE backlog and the developer toil that comes with it. Companies see a 60 to 99% reduction in CVEs and reclaim up to 30% of developer time. Learn more at activestate.com.
Will AI Replace Detection Roles in Cybersecurity?
2026/08/20
All links and images can be found on CISO Series Check out this post from Caleb Sima of Whiterabbit for the discussion that is the basis of our conversation on this week's episode co-hosted David Spark, the producer of CISO Series, and Yaron Levi, CISO, Dolby. Joining is Adrian Ludwig, CSO, Rippling. In this episode: The messy middle The automatable part Where automation stops The influence gap A huge thanks to our sponsor, ThreatLocker ThreatLocker delivers Zero Trust Network Access and Zero Trust Cloud Access that verifies both user and device before granting access to specific applications. No broad access, nothing exposed, and no reliance on credentials alone. It's a smarter way to control access and reduce risk. Learn more at ThreatLocker.com/CISO.
What Makes a Good AI Security Deployment?
2026/08/13
What Makes a Good AI Security Deployment? All links and images can be found on CISO Series Check out this post by Chris Matthews of UpGuard 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 Edward Contreras, senior evp and CISO, Frost Bank. Joining us is Peter Liebert, CISO, Salesloft & Clari. In this episode: Non-determinism changes everything The foundation problem Nobody owns the whole problem The authorization gap A huge thanks to our sponsor, CoreView Attackers don't break into Microsoft 365. They log in and reconfigure it. When tenant configurations drift or get tampered with, recovery can take weeks and missed settings can reopen the door. The Cyber Resilience Framework for Microsoft 365 covers the five pillars, harden, govern, detect, respond, recover, and shows exactly where today's tools leave gaps. Download the free practical guide
The Office Politics of Remediation
2026/08/06
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 Dan Walsh, CISO, Datavant. Joining is our sponsored guest, Elizabeth Nammour, founder and CEO, Teleskope. In this episode: Data ownership before automation A shared vocabulary for agent risk Maturing from crawl to run Trust earns automation its place A huge thanks to our sponsor, Teleskope Most DSPMs stop at finding the risk. Teleskope fixes this: it automatically finds sensitive data, including IP documents or board decks, and remediates exposure across cloud, SaaS, and AI environments natively, with human-in-the-loop controls, improving your team's efficiency tenfold. Trusted by Ramp, Polymarket, and Chevron Phillips, and more. teleskope.ai
Why is Preventative Security So Difficult?
2026/07/30
All links and images can be found on CISO Series Prevention in cybersecurity is a lot like flossing: everyone knows they should do it, but few do it enough. What's stopping us? Check out this post by Ross Haleliuk of Venture in Security 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 Edward Contreras, senior evp and CISO, Frost Bank. Joining us is Deneen DeFiore, vice president & chief information security officer, United Airlines. In this episode: The sponsorship gap One strike and you're out Policy without position Prevention isn't static A huge thanks to our sponsor, CoreView Attackers don't break into Microsoft 365. They log in and reconfigure it. When tenant configurations drift or get tampered with, recovery can take weeks and missed settings can reopen the door. The Cyber Resilience Framework for Microsoft 365 covers the five pillars, harden, govern, detect, respond, recover, and shows exactly where today's tools leave gaps. Download the free practical guide
Identity and Access Management (IAM) in an Agentic AI World
2026/07/23
All links and images can be found on CISO Series Check out this post by Tomás Maldonado, CISO, NFL, 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 Yaron Levi, CISO, Dolby. Joining is Will Gregorian, vp of information technology & security, Galileo Medical. In this episode: From who to what The manipulation problem Cryptographic accountability The audit gap A huge thanks to our sponsor, ActiveState ActiveState gives security and engineering teams a single governed source for open source software. With 79 million components built from source, continuously remediated, and delivered directly into the tools teams already use, ActiveState eliminates the CVE backlog and the developer toil that comes with it. Companies see a 60 to 99% reduction in CVEs and reclaim up to 30% of developer time. Learn more at ActiveState.com.

Podcast reviews

Read Defense in Depth podcast reviews


4.8 out of 5
77 reviews
★★★★★
JD000000000000000 2025/03/02
Great show!
Recently discovered David Sparks’ podcasts, and I can’t get enough. I end up chaining several in a row.
★★★★★
-CCDeYapp 2025/01/12
A superb cybersecurity podcast!
There is very little else to say. Give it a listen.
★★★★★
Shay Ch 2022/06/11
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!
★★★★★
John Haden 2021/06/20
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!...
★★★★★
roselinevelee 2021/01/03
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 ...
★★★★★
Financialadventure 2020/08/20
Love this show
This is a great podcast. I listen to it in double speed on my commute. I highly recommend it for all aspiring CISOs to go and think like a cyber leade...
★★★★★
obacker19 2020/06/22
Entertaining, insightful and actionable! 🙌
Whether you’re already a leader who enjoys wrestling with the shifting landscape of cyber security in our modern world, or just getting started as a c...
★★★★★
Rocco21 2020/02/20
A kick to the face with Knowledge!
This podcast is by far my favorite infosec podcast. The in-depth knowledge we are party to from the industry’s best is so invaluable. What I like most...
★★★★★
Omnicron David 2019/11/13
Great resource for the current security landscape.
I listen every day and learn something new each episode. They have high power guests and the discussions are spirited. Security is a complex concept...
★★★★★
Boatswain52 2019/09/21
My morning cup of Joe!
After listening to your podcasts and realizing the amount of wealthy information that comes out, you can get addictive very quickly to listen for past...
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