Many top-of-mind security technologies are still years away from deployment at most organizations. Despite the hype, Gartner estimates all will take at least five years to reach mainstream adoption. The technologies generating the most enthusiasm include key management as-a-service, data loss protection (DLP) for mobile devices, and software-defined perimeter. The bottom part of the curve, or “trough of disillusionment,” are technologies that failed to meet high expectations. Disaster recovery as a-service and private cloud computing into this section anticipates mainstream adoption within two years.”]
Source: https://www.darkreading.com/cloud/cloud-security-hype-fails-to-match-deployments