Michael K. Green Joins Trellix as CISO

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SAN JOSE, Calif.--(BUSINESS WIRE)--Aug 14, 2025--

Trellix, the company delivering the future of AI-powered cybersecurity, today announced the hiring of Michael K. Green as Chief Information Security Officer (CISO). Green joins the Trellix leadership team and will oversee Trellix security posture, governance, and incident response.

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Michael K. Green is CISO at cybersecurity leader Trellix

Recent Trellix research found almost all CISOs (98%) have experienced a cyberattack in the last year. This appointment comes as Trellix continues to advance innovation within its AI-powered Trellix Security Platform to ensure all CISOs have the tooling and resources to best prevent and respond to threats. As a seasoned CISO, Green brings unparalleled perspective into the pressing challenges facing Trellix’s customers and the cybersecurity community at large, and will serve as a key advisor in product development and customer engagements, in addition to leading business security and resilience.

“Mike has dedicated his career to protecting the infrastructure and products of some of the world’s most critical enterprises and industries, which is incredibly aligned with our own mission,” said Kim Anstett, CIO, Trellix. “He’ll continue this meaningful work while collaborating with Trellix’s world-class team of employees, customers, and partners to deepen our security capabilities in alignment with our growth goals and customer needs.“

Green joins Trellix with more than 25 years of experience leading sophisticated global security engineering, operations, governance, and fraud programs across regulated industries in critical infrastructure, healthcare, and financial services. He has served in CISO and security leadership roles at leading organizations like Ameren, Express Scripts, Cigna, and MasterCard, and most recently served clients as a fractional CISO and CTO, helping mature security programs, protect customer and business data, and align cybersecurity strategy with service delivery and regulatory requirements.

“Trellix is leading the industry in how it’s leaning into AI – both in its platform and its own use – to build smarter and faster security,” said Mike Green, CISO, Trellix. “Solving the real, everyday challenges CISOs and technology leaders face has never been more important. I’m looking forward to joining the team, learning, and continuing to nurture our security expertise for our customers.”

Green’s appointment reinforces Trellix's commitment to empower CISOs around the world with the industry’s broadest cybersecurity platform to respond to threats in real time, backed by strong customer relationships and a thriving partner community.

Additional Resources:

• Trellix: The Official Sponsor of the CISO
• Mind of the CISO: Closing the gap between reaction and readiness

About Trellix
Trellix is a global company redefining the future of cybersecurity. The company’s comprehensive, open and native cybersecurity platform helps organizations confronted by today’s most advanced threats gain confidence in the protection and resilience of their operations. Trellix, along with an extensive partner ecosystem, accelerates technology innovation through artificial intelligence, automation, and analytics to empower over 50,000 business and government customers with responsibly architected security. More at https://trellix.com.

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KEYWORD: UNITED STATES NORTH AMERICA CALIFORNIA

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SOURCE: Trellix

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PUB: 08/14/2025 09:00 AM/DISC: 08/14/2025 09:00 AM

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