Marcelle Lee

Founder and Principal Advisor at Fractal Security Group where I help organizations translate complex threat intelligence into clear, business-aligned strategy. Over a career spanning threat intelligence, emerging threat research, and program development, I’ve built a reputation for turning technical depth into insight that strengthens client trust and guides executive decision-making.

I lead cross-functional research initiatives and deliver briefings, tabletop exercises, and advisory services to clients, partners, and stakeholders across government and industry. A core part of my work is building and expanding strategic partnerships that improve intelligence sharing and organizational resilience.

Beyond client work, I’m a frequent public speaker and technical writer, publishing weekly threat research through my Cyber Threat Bulletin, and presenting at industry conferences, webinars, and training events. I also serve on the board of the Cyberjutsu, supporting the next generation of women in cybersecurity.