Mobile device management (MDM)
As part of your asset management strategy, you need to consider managing mobile devices. If you are a small company, a cost-effective way to do this is to use Apple’s Business Essentials for small businesses if your organization uses Apple products.
Microsoft’s Intune is great for asset management and mobile device management and also will manage Apple and Android devices.
A more traditional means of managing mobile devices is to use network access control (NAC). When I worked at Cisco, they used NAC for MDM. If you tried to connect to the Cisco internal network with your own device, it would automatically be put on the guest network. As for Internet of Things (IoT) devices, these should be on separate network segments since they are easily hackable and not internet-facing.