Series

Acting as a media network for cyber information and exchange, CISO Series is just a member of this fantastic community that unfortunately has some conflicts. We’re just putting ourselves at the center of the conversation, acting as couples counseling for security vendors and practitioners.

CISO Series: Delivering the most fun you’ll have in cybersecurity.

Here are some of the voices you hear on our network

David Spark

David Spark

David Spark (@dspark) is the founder and executive producer of the CISO Series. He also co-hosts many of our shows.

Spark is a veteran tech journalist that’s appeared in many media outlets such as eWEEK, Wired News, Forbes, PCWorld, ABC Radio, John C. Dvorak’s “Cranky Geeks,” KQED’s “This Week in Northern California,” and TechTV (formerly ZDTV).

Outside of tech, security, and marketing, Spark squandered more than a dozen years working as a touring stand up comedian, a San Francisco tour guide, and comedy writer for The Second City in Chicago.

Co-hosts for CISO/Security Vendor Relationship Podcast

Mike Johnson is the former CISO of Lyft.

Andy Ellis (@csoandy) is the operating partner for YL Ventures.

Co-hosts for Defense in Depth

Geoff Belknap (@geoffbelknap), CISO, LinkedIn

Steve Zalewski, former CISO, Levi Strauss

Reporters for Cyber Security Headlines

Steve Prentice (@StevenPrentice) is the sponsored segment producer for the CISO Series. You can hear his voice on all three podcasts in our network. In addition to his focus in cybersecurity, Prentice also writes about how human beings interface with technology.


Sean Kelly is a cyber risk professional and leader who thrives on learning, collaborating and helping the business securely advance its mission. Sean is also a musician and outdoor enthusiast who loves spending time with his family and two cats.


Rich Stroffolino (@MrAnthropology) is a podcaster, editor and writer based out of Cleveland, Ohio. He’s spent the past five years creating media for technology enthusiasts and IT practitioners. He dreams of someday writing the oral history of Transmeta.