In this Computer Weekly opinion piece, KOBIL founder İsmet Koyun argues that quantum-readiness starts not with algorithms or certificates, but with the connection handshake itself — the point where two systems authenticate and agree on a session key. He makes the case for hybrid cryptography, running classical and post-quantum methods in parallel so a connection stays secure even if one method is later broken, and lays out where to start: internal systems first, where full control makes testing low-risk, before extending hybrid approaches to external connections and PKI. The piece closes with a six-step action list for building a crypto inventory and cryptographic agility.