Rick Howard has enjoyed a distinguished career in cybersecurity, including time in the U.S. Army and as chief security officer at Palo Alto Networks. These days, I’m proud to call Rick my colleague at the CyberWire, where he serves as our chief security officer and chief analyst.  Rick Howard is also creator of the podcast series CSO Perspectives, where he explores the wide spectrum of issues facing chief security officers. In an early season of that show, Rick focuses on the notion of first principles, the foundational notions on which our fundamental security ideas and beliefs rest. Rick Howard joins us this week for an overview of first principles — what it means, how to implement it, and how to convince the powers that be in your organization that it’s the right thing to do.