The public cloud delivers unbundled, distributed infrastructure with nothing more than an API call. Encryption allows IT teams to maintain control over assets in environments they don’t physically control. With past data centers, the switch or router that forwarded data to the Internet relied on physical boxes (firewalls, load balancers, IDP, etc.) for security services. The rise of distributed infrastructure didn’t result only from the rise of cloud, but it is largely attributable to it. To accommodate complexity and scale, we need to adopt “distributed security” to workloads and data.”]
Source: https://www.darkreading.com/cloud/encryption-a-new-boundary-for-distributed-infrastructure