All links and images can be found on CISO Series.

This week's episode is hosted by David Spark, producer of CISO Series and Steve Zalewski. Joining them is Tammy Klotz, CISO, Trinseo.

In this episode:

• Accountability without authority
• Kill your hacklore
• Voice is no longer enough
• Studies that tell us what we already know

Huge thanks to our sponsor, ThreatLocker

Want real Zero Trust training? Zero Trust World 2026 delivers hands-on labs and workshops that show CISOs exactly how to implement and maintain Zero Trust in real environments. Join us March 4–6 in Orlando, plus a live CISO Series episode on March 6. Get $200 off with ZTWCISO26 at ztw.com.

All links and images can be found on CISO Series.

This week's episode is hosted by David Spark, producer of CISO Series and Andy Ellis, principal of Duha. Joining them is Russ Ayres, CISO, Principal Financial Group.

In this episode:

• Metrics that matter
• Tool babysitting problem
• Automating the brokenness
• Stay connected intentionally

Huge thanks to our sponsor, Strike48

Strike48 is the Agentic Log Intelligence Platform that actually puts AI agents to work, combining full log visibility with AI agents that investigate, detect, and respond 24/7. With pre-built agent clusters for security and a no-code agentic workflow builder, it's easy to get started. Learn more at strike48.com/security.

All links and images can be found on CISO Series.

This week's episode is hosted by David Spark, producer of CISO Series, and Andy Ellis, principal of Duha. Joining them is Janet Heins, CISO, ChenMed.

In this episode:

• Inbound gets ignored
• Independence under constraint
• Methodology means nothing
• Lives over logins

Huge thanks to our sponsor, Guardsquare

Guardsquare delivers mobile app security without compromise, providing advanced protections for both Android and iOS apps. From app security testing to code hardening to real-time visibility into the threat landscape, Guardsquare solutions provide enhanced mobile application security from early in the development process through publication. Learn more about how to protect your app at Guardsquare.com.

All links and images can be found on CISO Series.

This week's episode is hosted by David Spark, producer of CISO Series and Mike Johnson, CISO, Rivian. Joining them is Johann Balaguer, Global CISO, Hard Rock Hotels and Casinos.

In this episode:

• Understanding the why
• Own your digital self
• Invest beyond tenure
• Prepare for dependencies

Thanks to Louis Zhichao Zhang, AIA Australia for contributing this week's "What's Worse?!" scenario.

Huge thanks to our sponsor, Guardsquare

Guardsquare delivers mobile app security without compromise, providing advanced protections for both Android and iOS apps. From app security testing to code hardening to real-time visibility into the threat landscape, Guardsquare solutions provide enhanced mobile application security from early in the development process through publication. Learn more about how to protect your app at Guardsquare.com.

All links and images can be found on CISO Series.

This week's episode is hosted by David Spark, producer of CISO Series and Andy Ellis, principal of Duha. Joining them is Sara Madden, CISO, Convera.

In this episode:

• Hold developers accountable
• Credibility through candor
• Be strategic with AI deployment
• Resources don't guarantee security

Huge thanks to our sponsor, ThreatLocker

ThreatLocker makes Zero Trust practical. With Default Deny, Ringfencing, and Elevation Control, CISOs get real control that's easy to manage and built to scale. Stop threats before they execute and reduce operational noise without adding complexity. See how simple prevention can be at ThreatLocker.com/CISO.

All links and images can be found on CISO Series.

This week's episode is hosted by David Spark, producer of CISO Series and Matthew Southworth, CSO, Priceline. Joining them is sponsored guest, Saket Modi, CEO, Safe Security. This episode was recorded live at FAIRCON25 in NYC.

In this episode:

• AI won't stay broken
• Identity before intelligence
• People decide risk appetite
• Automate with oversight

Huge thanks to our sponsor, Safe Security

SAFE is the leader in Cyber Risk Quantification and the first company to deliver 100% autonomous Third-Party Risk Management. Powered by Agentic AI and built on FAIRtm, SAFE empowers CISOs, cybersecurity, and TPRM leaders to continuously quantify, prioritize, and mitigate cyber risks across their entire attack surface – enabling digital growth and organizational resilience. Learn more at testdrive.safe.security/

All links and images can be found on CISO Series. This week's episode is hosted by me, David Spark, producer of CISO Series and Matt Southworth, CISO, Priceline. Joining us is our sponsored guest, Leslie Nielsen, CISO, Mimecast.

In this episode:

• Automating dysfunction
• Leading without dominating
• Unglamorous wins
• Code without comprehension

Huge thanks to our sponsor, Mimecast.

Cyber threats are getting smarter every day, and threat actors aren't just targeting your technology, they're targeting your most valuable asset - your people. Mimecast helps you identify and secure risk with a unified, intelligent platform that protects across the spectrum of threats; from email and chat to file sharing. Learn more at www.mimecast.com.

All links and images can be found on CISO Series.

This week's episode is hosted by David Spark, producer of CISO Series and Brett Conlon, CISO, American Century Investments. Joining them are Ryan Barras, CISO, Mount Sinai Medical Center.

In this episode:

• Nobody understands what we do
• Someone else should fix this
• Make the audience care
• Speaking CEO

Huge thanks to our sponsor, Dropzone AI

Dropzone AI autonomously investigates every security alert—no playbooks needed. This AI SOC analyst queries your CrowdStrike, Splunk, threat intel feeds, and 60+ other tools to build complete investigations in 5 minutes. Unlike black-box automation, it shows every query, finding, and decision. See it work yourself—explore the self-guided demo at dropzone.ai.

All links and images can be found on CISO Series.

This week's episode is hosted by David Spark, producer of CISO Series and Mike Johnson, CISO, Rivian. Joining them is their sponsored guest, Danny Jenkins, CEO, ThreatLocker.

In this episode:

• AI for AI's sake
• Stop selling, start protecting
• Stop calling everything sophisticated
• Least privilege, rebranded

Huge thanks to our sponsor, ThreatLocker

ThreatLocker makes Zero Trust practical. With Default Deny, Ringfencing, and Elevation Control, CISOs get real control that's easy to manage and built to scale. Stop threats before they execute and reduce operational noise without adding complexity. See how simple prevention can be at ThreatLocker.com/CISO.

All links and images can be found on CISO Series.

This week's episode is hosted by me, David Spark, producer of CISO Series, and Mike Johnson, CISO, Rivian. Joining us is John Barrow, CISO, JB Poindexter & Co.

In this episode:

• Building unicorns, not hunting them
• Cold War frameworks for modern threats
• Trading dollars for stories
• Mirror, mirror on the wall

Huge thanks to our sponsor, Vanta

Vanta automates key areas of your GRC program—including compliance, risk, and customer trust—and streamlines the way you manage information. A recent IDC analysis found that compliance teams using Vanta are 129% more productive. Get back time to focus on strengthening security and scaling your business at vanta.com/ciso