Todayâs columnist, Michael Covington of Wandera, says many companies start on their Zero Trust journey by focusing on SaaS apps first. CerilliumCreativeCommonsCC BY 2.0 Zero Trust requires that all users are authenticated, authorized, and continuously assessed for risk to access corporate applications and data. Many organizations begin their Zero Trust journey with the modernization of their remote access stack. Legacy VPN, and related technologies, aren’t just slow, they’re characteristic of technologies that rely on implicit trust. But rip-and-replace projects are notoriously resource-intensive and disruptive, causing IT teams to put off beneficial efforts, such as implementing Zero Trust Network Access (ZTNA).