This is the audio from my interview with Dave Lewis, a Global Advisory CISO at Cisco, on the S4x22 Main Stage.

Dave has experience securing both IT and OT (he worked for electric utilities in Canada). Even more interesting is he talks every week with a wide variety of CISO's. 

It's a wide ranging discussion that hits a lot of different areas on how to work and communicate best with CISO's and executive management on ICS security and cyber risk.