Virtualization has created challenges to how security is applied and deployed for cloud environments. Layer 7 visibility and enforcement for the cloud is critical for security. Layer 5-7 information provides context about applications, and that context improves the accuracy of security controls that can be applied. The ability to fingerprint applications and dynamic protocols such as SOAP and RPC through application ID is critical to deploying and enforcing security policy. We can no longer rely on traditional perimeter security at Internet Edge or in the DMZ to provide protection in these workloads.”]
Source: https://www.csoonline.com/article/3190991/finding-and-protecting-the-crown-jewels.html