Our Team.
At Active Defence, we specialize in cybersecurity services tailored for a wide range of industries.
With a wealth of experience spanning over 20 years, our dedicated team has developed safeguards that effectively protect organizations from cyber threats.
We have successfully trained over 100,000 staff members across global regions, including the US, Latin America, South America, Asia, and Europe.
Our goal is to enhance your organization's cyber resilience while providing the necessary support to navigate the complexities of today's digital landscape.
Partner
Ray Tam
Ray is a seasoned technology leader with over 15 years of experience managing complex IT and cybersecurity programs across the public sector, finance, transportation, and manufacturing industries. He has led cybersecurity initiatives with budgets in the multi-million-dollar range, delivering enterprise-wide risk management programs that have significantly strengthened organizational security posture.
Partner
Zach Sze-To
With over 12 years of cybersecurity consulting and delivery experience, Zach specializes in Offensive Security, Cloud Security, Incident Response (IR), and Identity & Access management (IAM). He has been instrumental in standing up multiple offensive security departments across major banks, global corporations, and government agencies—leading critical initiatives for clients such as MGM Resorts, Walmart, and top-tier financial institutions.
Partner
Aleks Krstic
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Aleks Krstic is a Cybersecurity Training and Education Specialist with over 8 years of experience designing and executing enterprise-wide training and social-engineering simulations across retail, municipal and transportation environments. He’s spearheaded comprehensive programs that build proactive security cultures and strengthen human resilience against evolving threat vectors.