Use secure networks, such as your cellular carrier network, secured company wifi, or wired connections. Use a cellular network from mobile devices - (if you do not have access to a secure wifi) Your cellular carrier network is the best choice for a secure connection. Your home network Secure your home network. There are two basic steps to securing your home network: (1) keep your devices up to date and (2) secure your wireless router. Use a wired connection to your home network when practical. Use a VPN when accessing sensitive company data.