CyberWire Daily Mike Arrowsmith: Facing adversity in the workplace. [CTrO] [Career Notes]
Feb 15, 2026
Mike Arrowsmith, Chief Trust Officer at NinjaOne who built security programs from national labs to startups, shares his winding career path. He describes why constant change in cybersecurity excites him. He uses a chasing-a-ball metaphor for adversaries. He talks about mentoring, cross-team collaboration, and opportunities to shape security in fast-growing companies.
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Thrill Of Constant Change
- Cybersecurity's appeal is its constant change and the challenge of chasing evolving threats.
- Mike Arrowsmith says this ongoing shift is what he finds most fascinating and energizing.
From Aspiring Architect To Security Leader
- Mike Arrowsmith expected to be an architect but found technology and cybersecurity instead.
- Early jobs at FedEx and a startup led him into PCI work and then Lawrence Livermore National Laboratory.
PCI Work Sparked A Cybersecurity Career
- Processing credit cards at Reserve Interactive exposed Mike to PCI requirements and cybersecurity.
- That experience opened the door to a role at Lawrence Livermore National Laboratory working on the National Ignition Facility.