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Pillar Security, a Miami-based AI security company, announced the appointment of Brandon Dixon as a Strategic Advisor to its Advisory Board. Dixon, a renowned cybersecurity entrepreneur and former Security AI Strategist at Microsoft, brings extensive experience in threat intelligence and AI-driven security, bolstering Pillar’s mission to secure the AI lifecycle.
Announcement: Brandon Dixon joins Pillar Security’s Advisory Board, September 8, 2025.
Background: Co-founder of PassiveTotal, former VP at RiskIQ, and Microsoft Security AI Strategist.
Role: Advise on AI security strategy, leveraging expertise from Microsoft Security Copilot.
Company: Pillar Security, a seed-funded AI security platform for enterprise AI systems.
Leadership: CEO Dor Sarig and Shield Capital’s Elias Manousos praise Dixon’s expertise.
Recent Moves: Pillar also appointed Jenna Raby as SVP of Growth.
Brandon Dixon’s career spans pivotal roles in cybersecurity and AI:
PassiveTotal: Co-founded the threat intelligence platform, acquired by RiskIQ.
RiskIQ: Led product strategy, contributing to its acquisition by Microsoft.
Microsoft: As Security AI Strategist, spearheaded Microsoft Security Copilot and advanced Defender Threat Intelligence and External Attack Surface Management.
“I’m excited to join Pillar’s journey,” said Dixon. “This team has built a foundational security platform that understands AI systems at their core, anticipating where AI threats will emerge.”
Pillar Security, founded by cybersecurity experts, secures the AI lifecycle through AI Discovery, AI Security Posture Management (AI-SPM), AI Red Teaming, and Adaptive Runtime Guardrails. Dixon’s appointment enhances Pillar’s ability to address enterprise AI security challenges, such as data leakage and compliance with evolving regulations.
“Brandon embodies the entrepreneurial vision and enterprise excellence that defines Pillar,” said CEO Dor Sarig. Elias Manousos, lead investor at Shield Capital and former Microsoft CVP, added, “Few understand the intersection of AI and security as deeply as Brandon.”
Pillar’s momentum follows its recognition in the 2025 Gartner® Market Guide for AI TRiSM and a $9M seed funding round led by Shield Capital. The AI security market is projected to grow at a 30% CAGR through 2030, driven by increasing AI adoption and threats. Posts on X highlight Dixon’s expertise but note competitive pressures in AI security.
Founded in 2023, Pillar Security provides a comprehensive AI security platform, ensuring visibility and control across AI development and deployment. Trusted by enterprises, it prevents data leaks and neutralizes AI-specific threats.
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