Why do we implement systems and application with poor security characteristics? This talk looks at the evolution of network security as a consequence of productive change. Specifically, we will look at the challenges imposed by BYOD requirements (particularly on wireless security), the pressure on performance to meet the aggregated traffic loads of cloud/datacenter demands, the emergence of IP-based industrial controls, and a deep look into how the migration from IPv4 to IPv6 will require new network-based approaches for their security.