(Image credit unknown, from Scope Security website)

From his bio at Scope Security (https://scopesecurity.com/company/)
Mike Murray was the founder and CEO of Scope Security, the healthcare security company. At Scope, Murray builds on his nearly two decades of experience leading teams of highly skilled security professionals to solve critical security problems in healthcare.
Throughout his career, Murray has helped discover some of the world’s most notorious breaches and nation state threats, and is sought out by industry, media and security teams for insights on today’s most pressing issues in cybersecurity.
Prior to founding Scope, Murray served as the Chief Security Officer at Lookout, where he presided over the protection of nearly 200m mobile users and their data. Previously, he led Product Development Security at GE Healthcare, where he built a global team that secured all of GE Healthcare’s portfolio of pre-market medical devices and services. Murray also co-founded The Hacker Academy and MAD Security, and has held leadership positions at companies including Lookout, nCircle Network Security, Liberty Mutual Insurance and Neohapsis.

In Appreciation: Mike Murray at Dark Reading

Thank you for everything Mike. We’ll miss you. at Tripwire VERT

Videos of Mike's presentations:

Building Teams in the New Normal - DEF CON 28 Career Hacking Village https://www.youtube.com/watch?v=V7DDxq6_4Mc

BSides Las Vegas 2021, Hire Ground: Healthcare Industry Career Search Panel https://www.youtube.com/watch?v=ZTcyziPox_c 

BSides Las Vegas 2019, Hire Ground: The Importance of Culture - Mike Murray https://www.youtube.com/watch?v=0NvcKr1AqMw
BSides Las Vegas 2018, Hire Ground: The Key to Managing High Performance Security Teams - Mike Murray https://www.youtube.com/watch?v=2rSwGqXSEVE
BSides Las Vegas 2017, Hire Ground: Hacking Is Easy, Hiring Is Hard: Managing Security People - Mike Murray https://www.youtube.com/watch?v=QpyT5supwZY

BSides Rhode Island 2013: The importance of culture in user security - Mike Murray and Kati Rodzon https://youtu.be/45oV8MkY5bg

Mike's appearances on Security Weekly Podcasts:
Security Weekly Episode 386 with Mike Murray https://www.youtube.com/watch?v=qIYKqFwtJGw
Business Security Weekly Episode 243, Why Hospitals Face Unique Security Challenges, with Mike Murray https://www.youtube.com/watch?v=flmMxf80T9A

Personal remembrances

From Billy Boatright (@fuzzy_l0gic on Twitter)
"June 2012, while I was recovering from my tracheostomy in the ICU, I saw a job ad for a CTF environment tester on craigslist at MAD Security. After a couple emails back and forth, Mike asked to setup an interview. I told him my current situation, and he was amazingly understanding and allowed me to do a chat interview with him. What a great guy."

From Suchi Pahi:
I had the pleasure of being introduced to him by Kathleen because of our backgrounds in health security, and then enjoyed working with him on a podcast episode for scope security -
Mike was so engaging, level-headed, kind, and funny. He had years of experience but was still curious and thoughtful about both his field and life generally. He was great.
The episode of the Scope Security Podcast with Mike and Suchi: https://scopesecurity.com/a-conversation-with-suchi-pahi-why-hipaa-compliance-is-difficult/