The perimeter-based network security model that defined users inside a corporate network perimeter as “trusted” no longer provides the same level of security as it did in the past. Today, cloud computing, mobility, and remote work change how people connect to digital resources. As part of these new models, employees increasingly want to use their own devices, making Bring Your Own Device (BYOD) policies even more critical to security. Implementing a zero trust architecture in a BYOD environment should incorporate mobile threat defense (MTD) to augment the security technology stack.