About Vyfority
Built to fix the model, not to feed it.
Vyfority is an independent cyber security and business architecture advisory for the Australian mid-market. It exists because the traditional consulting model, junior leverage, endless scope, reporting theatre, is misaligned with the speed and capital constraints of mid-market and not-for-profit organisations. Vyfority replaces it with senior-only, practitioner-led engagements at fixed fees, standing behind the outcome.

The Principal

Dean Kastelic, Founder
Dean Kastelic is a former enterprise CISO and ex-KPMG Director of Cyber Advisory, with more than twenty years across security architecture, regulated industries and critical national services. He has advised executives and boards through high-stakes security programs where the work had to translate into business outcomes, not just reports. He founded Vyfority to deliver that calibre of judgement to organisations the Big Four models price out or under-serve.
“We don't bring an army of junior consultants. We bring the diagnosis, the plan, and the person who stands behind both.”
Former Enterprise CISO · Ex-KPMG Director, Cyber Advisory · 20+ Years, Regulated Industries · Author, The Vyfority Playbook
Practitioners, Not a Pyramid
Deliberately small, deliberately senior
Vyfority is deliberately small and senior. Engagements are led personally by the principal and delivered through a tight network of specialist practitioners and delivery partners, brought in by capability for the specific engagement, never a bench of juniors billed by the hour.
- 01
Senior-led delivery
The person who scopes the work does the work. Every engagement is led personally by the principal, start to finish.
- 02
A specialist network
Vetted practitioners and delivery partners, engaged by capability for the specific engagement, never a bench of juniors billed by the hour.
- 03
Independent by structure
No products to resell and no vendor margin, so there is no incentive to inflate scope. When the answer is “keep what you have”, that is the finding.
Why Vyfority Exists
The four traps of the traditional model
- 01
The audit treadmill
Endless assessments and maturity reviews that produce reports, not operational improvement.
- 02
The compliance fallacy
The watermelon effect: frameworks treated as a finish line, green to the board and vulnerable underneath.
- 03
Over-engineering
Gold-plated controls and overlapping tools misaligned with the actual threat landscape and the business's margins.
- 04
The cyber silo
Security run as a standalone technical function, disconnected from the IT roadmap, business strategy and the CFO's balance sheet.
Vyfority is built to eliminate all four. How, is the operating model.
See how we work →Who We Serve
Executives measured on outcomes, not activity
Vyfority works with the executives measured on outcomes, not activity: CFOs, CEOs, boards, risk committees and, in the not-for-profit sector, the directors who carry the same duty with fewer resources. The common thread is a suspicion that the cyber budget is a financial black hole, and a need for someone independent to prove or disprove it.