Securechain is an innovation which delivers security, scalability and auditability to Software Defined Networks (SDN). Securechain leverages Blockchain technology, the same technology which powers the popular and highly disruptive cryptocurrency Bitcoin, but applied in a completely new and innovative way. Using Reply’s expertise in Blockchain and SDN, together with bespoke software development, Sytel Reply has created a brand new and powerful system to provide security, scalability and auditability to these future networks.