Cybertify secures Arni Hardarson as Head of Offensive Security bolstering elite cyber squad
Cybertify Strengthens Leadership with Arni Hardarson Appointment
Melbourne, Australia, 11 November 2025: Fast-growth elite cyber squad Cybertify has announced the appointment of Mr Arni Hardarson, one of Australia’s most senior cybersecurity leaders and an internationally recognised industry icon, as Head of Offensive Security.
Originally lured to Australia from Europe 15 years ago to help accelerate the nation’s offensive security capability, Mr Hardarson has been pivotal in building Australia’s cyber resilience and now joins Cybertify to turbocharge its next phase of growth and market expansion.
Mr Ramtin Diznab, Founder and CEO, Cybertify, says, “Mr Hardarson’s appointment marks an important growth milestone for Cybertify. His exceptional leadership and deep expertise will supercharge our offensive security capabilities. This will enable us to deliver agile, precise, and enterprise-grade results for our clients. We are assembling a senior, highly experienced team to take on the big players. Cybertify is poised for fast growth, and Mr Hardarson’s arrival represents the calibre of expertise we are attracting to our mission.”
A Proven Track Record in Offensive Security
Mr Hardarson has over 20 years of experience in technical excellence and strategic leadership. His appointment strengthens Cybertify’s drive to build a seasoned, elite cyber team. Together, they aim to rival major players and deliver top-tier results across Australia’s most regulated industries.
Mr Hardarson joins Cybertify from Thales Cyber and Digital, formerly Tesserent, where he served as Head of Assurance and led complex penetration testing, red-team operations, and security advisory programs across government and enterprise.
Mr Hardarson has held senior roles at Pure Hacking, Pure Security, Tesserent, and Thales, where he built and led high-performance offensive security teams. He has delivered complex engagements at scale across diverse industries. His deep expertise covers penetration testing, code auditing, mobile and web application security, infrastructure and network defense, vulnerability research, and adversary simulation.
Driving Cybertify’s Next Phase of Growth
Commenting on his appointment, Mr Hardarson enthuses, “I’m excited to join Cybertify’s elite cyber squad, an ambitious consulting group with big plans in cybersecurity. I will strengthen our high-impact offensive security capability, and work alongside a passionate team to strengthen our clients’ security defences and deliver tangible value.”
About Cybertify
Cybertify is Australia’s leading sovereign cybersecurity firm, setting new benchmarks in Offensive Security, GRC, and virtual CISO services. Its elite cyber squad features some of the nation’s most accomplished cybersecurity professionals. These experts bring experience from top consultancies and high-security environments, ensuring unparalleled capability and trust.
Cybertify recruits only the best in the field, delivering precision, speed, and outcomes that withstand board and regulator scrutiny. The firm strengthens resilience, builds trust, and provides measurable security assurance across highly regulated industries.
For more information, please visit www.cybertify.com.au.
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