The castle-and-moat approach to security is no longer as relevant in the age of cloud computing and hybrid work. The notion of a secure perimeter is hardly practical in an era when employees often work from home and use their own devices to remotely access cloud-based apps and computing resources. On January 26, 2022, the White House published a memo stating the standards for zero trust to be applied throughout federal technology infrastructure. This eBook provides an overview of the US Government’s zero trust security adoption roadmap and explains its implications for today’s government entities and global businesses.