A zero trust model is important because the traditional approach of giving free rein to users and devices within an implicit trust zone or when connected via a VPN is simply not working. These outdated perimeter defense models are failing to secure our data because organizational boundaries are no longer limited to on-premises systems. Remote workers and mobile devices are external to the network perimeter, and adoption of cloud technologies further expands the security boundary. Meanwhile, cyberattacks continue to become more complex and impactful. A successful ransomware attack can cripple an organization, resulting in the loss of critical functionality and exposing sensitive information. No organization is immune—attackers have successfully ransomed large companies, municipalities, and even hospitals.