With the aim of guaranteeing security in the transmission and management of the information captured by the devices designed and implemented in the CAMoN project, the Cartagena team has created a VPN (Virtual Private Network) that connects the gateways to the Cartagena and Colombia servers in a safe way. This prevents access to important services outside the VPN. In addition, a firewall has been configured that limits access to these servers and their hosted databases. In this way, the security of our system is guaranteed, as well as the privacy of registered users.