Twice a month Dale interviews someone doing innovative work in ICS security or a related field in his Unsolicited Response Podcast. The goal is to bring you new information and ideas that disrupt and interrupt conventional wisdom and established patterns in ICS and IIoT security.






Check out the latest episodes of the podcast. If you like it, subscribe and leave me a review. I’m also interested in what guests or topics you would like covered in the podcast. Send me your ideas.

You can also listen on Amazon’s Alexa or Echo or Google Home by saying “listen to the Unsolicited Response Podcast”.

Podcast: S4x20 Closing Panel

Podcast: S4x20 Closing Panel

Ralph Langner of Langner, Inc. and Zach Tudor of INL join me on the S4x20 Closing Panel. This is always one of the most fun and highly rated session at S4. We cover a lot of ground...

Interview with Inventor & Legend Ed Schweitzer

Interview with Inventor & Legend Ed Schweitzer

This podcast is the audio from my S4x20 Main Stage interview with electric sector and ICS legend Ed Schweitzer. He was the perfect person to interview related to the event theme: Create The Future in OT and ICS security. It's a wide ranging and fun interview. (Ed has...

Podcast: Interview with Bryan Owen of OSIsoft

Podcast: Interview with Bryan Owen of OSIsoft

Winner of the 2020 Michael J. Assante ICS Security Lifetime Achievement Award Bryan and I were scheduled to go skiing prior to ICSJWG in Park City. With that squashed we decided to record a podcast instead. Bryan and I begin with what winning the Michael J. Assante...

Podcast: Tenable’s OT Strategy with Marty Edwards

Marty Edwards has worked for an ICS asset owner, INL, DHS, ISA and late last year he made the move to a security product vendor, Tenable. This happened at the same time that Tenable acquired Indegy for $78M, indicating they are serious about OT security space. I talk...

Podcast: ICS Threat Intel with Sergio Caltagirone

Sergio began his career doing threat intelligence in the US Government's NSA and now is the VP of Threat Intel at Dragos. We focus in this episode on where the data for threat intel is obtained, how the threat intel product is created, and how it should be used by an...


2020-15: Building and Using Digital Twins with Mike Aylott of KBC

2020-14: Matt Wyckhouse of Finite State on ICS Firmware Testing

2020-13: May – ICS Security Month In Review

2020-12: COVID-19 Impact on Careers, ICS Security and S4x21

2020-11: S4x20 Closing Panel

2020-10: Interview with Inventor and Legend Ed Schweitzer

2020-9: Interview with Bryan Owen of OSIsoft

2020-8: Tenable’s OT Strategy with Marty Edwards

2020-7: Thomas Parenty on Board of Directors Responsibility in Cyber Risk and Business Risk

2020-6: ICS Threat Intel with Sergio Caltagirone

2020-5: An Interview with Andy Greenberg – Author of Sandworm

2020-4: Kelly Jackson Higgins Interviews Dale

2020-3: The Cabana Sessions with Reid Wightman, Stephan Hilt and Lord Remorin

2020-2: Megan Samford on Incident Command System for ICS (ICS4ICS)

2020-1: Interview with DHS CISA Director Krebs


2019-14: Interview with Marina Krotofil

2019-13: Sean McBride on ICS Cybersecurity Education

2019-12: An Interview with Patrick Miller from Sochi, Russia

2019-11: S4x19 Closing Panel with Dale, Rob Lee and Zach Tudor

2019-10: Rockwell Automation Cybersecurity

2019-9: ForeScout’s Strategy Post SecurityMatters Acquisition

2019-8: An Interview with Jonathan Homer of DHS

2019-7: ICS Firewall Market Analysis and Software / Firmware Integrity with Eric Byres

2019-6: Truth or Consequences? … Consequence Based Risk Management Approaches

2019-5: Maritime Cybersecurity

2019-4: RSA Conference / ICS Village Report 

2019-3: Robert Graham Interview at S4x19 

2019-2: Is The Purdue Model Dead?

2019-1: 4 Takeaways from 2018 plus my S4x19 Mini-Keynote 

S4 Stage Interviews

Dale interviews Ed Schweitzer of SEL on the S4x20 Main Stage. Ed is a prolific inventor and still very technical almost 3 decades after he invented the digital relay and started SEL.

Dale interviewed Andy Greenberg, author of Sandworm, on the S4x20 Main Stage.

Claroty, Gravwell, Nozomi and Security Matters competed in the ICS Detection Challenge at S4x18. In this session Eric Byres, John Cusimano and Dale Peterson discuss the Asset Inventory portion of the contest.