Portrait of Sebastiaan Bäck

Almost three decades, three phases of the same mission.

25+years in cyber
C-leveltrusted advisor
Europeregional reach
Phase 1

Offensive Security, in the trenches

Hands-on red team and clandestine-grade offensive work — learning how real adversaries think by operating like one.

Phase 2

Field CISO & Security Leadership

Fractional CISO/CTO roles for enterprise C-suites, translating hands-on offense into defensible, board-ready strategy.

Phase 3 — Today

Principal Strategist & Advisor

Trusted advisor to the C-suite across Europe — vision, hardening, and enablement in one seat.

"I make rocket-science concepts easy, practical, and built to work."

I've spent almost 30 years moving between two worlds that rarely talk to each other: the offensive trenches where real attacks are built and run, and the boardroom where risk decisions actually get made. That dual fluency is the job — translating technical reality into board-level vision, and vision back into operational plans that survive contact with reality.

Today I work as a Principal Cyber Security Strategist and fractional Field CISO/CTO for C-suites across Europe, alongside public speaking and enablement work that keeps security teams sharp and boards informed.