The appointment marks a key milestone in Cybertify’s mission to build Australia’s most advanced offensive security and cyber resilience capabilities.
In a move set to redefine Australia’s cybersecurity landscape, Cybertify, one of the country’s fastest-growing sovereign cybersecurity firms, has appointed Arni Hardarson, a highly respected industry veteran, as Head of Offensive Security.
With more than two decades of experience spanning technical expertise and strategic leadership, Hardarson’s appointment strengthens Cybertify’s focus on offensive security, governance, risk and compliance (GRC), and virtual CISO services. Known for assembling an elite “cyber squad” of Australia’s most accomplished security professionals, Cybertify continues to attract top-tier talent from leading consultancies and high-security environments.
“I’m excited to join Cybertify’s elite cyber squad — an ambitious consulting group with big plans in cybersecurity,” said Arni Hardarson, newly appointed Head of Offensive Security at Cybertify.
Ramtin Diznab, Founder and CEO of Cybertify, said the appointment represents a significant growth milestone for the company. “Arni’s outstanding leadership and deep technical knowledge will accelerate our offensive security capabilities and enable us to deliver enterprise-grade outcomes with agility and precision. We are building a senior, battle-tested team ready to compete with the biggest players — and Arni embodies the calibre of expertise driving our mission.”
Before joining Cybertify, Hardarson led Thales Cyber and Digital (formerly Tesserent) as Head of Assurance, overseeing complex penetration testing, red-team operations, and security advisory programs across government and enterprise sectors. His career also includes leadership roles at Pure Hacking, Pure Security, and Tesserent, where he helped shape Australia’s national offensive security ecosystem.
With this appointment, Cybertify reinforces its commitment to strengthening Australia’s cyber defence posture. Its elite consulting model delivers precision, speed, and measurable resilience for clients in regulated industries — setting a new standard for trust and performance in cybersecurity services.