The Z-Wave Alliance is adding a security requirement to its interoperability certification. This is an important addition to its certification program that will require manufacturers to adopt the strongest levels of IoT security. The Z-Wave Alliance will make the implementation of the new Security 2 (S2) framework mandatory for all products that are Z-Wave certified after April 2nd, 2017. The security measures in S2 provide the most advanced security for smart home devices and controllers, gateways and hubs.