About
The security partner CISOs recommend.
Boutique focus. Enterprise depth. A senior team that both builds and defends.
Our approach
Senior people, no hand-offs.
Every engagement is staffed by senior engineers — never Tier-1 outsourcing. We measure ourselves on outcomes: faster detection, contained incidents, and systems that pass audits.
Defense-first
We run mature security operations so you don't have to build one.
Offensive mindset
We test like real adversaries, then help you close the gaps.
We build too
The rare firm that ships production software and defends it.
Leadership
The people behind the work.
Elena Marković
Founder & CEOFormer CISO in banking and critical infrastructure. 18 years defending regulated environments across three continents.
Daniel Osei
Head of Offensive SecurityEx-red team lead. Has run adversary emulation against Fortune 500 networks and national infrastructure.
Priya Nair
Head of Cloud & PlatformPlatform engineer turned security architect. Builds and hardens the systems clients rely on every day.
Marcus Feld
Director of Incident ResponseHas led breach response and forensics on hundreds of incidents, from ransomware to nation-state intrusions.
A CISO we now recommend to our peers. GuardDix found what two prior firms missed — and gave us a plan we could actually execute.
They contained our incident before we finished briefing the board. Senior people, no hand-offs, no drama.
The rare partner that builds and defends. Our platform shipped SOC 2-ready from day one.