As global cloud adoption climbs, new IT and security challenges emerge that current tools fail to address. While securing known assets is straightforward, it is not possible to secure what is not known. Many of these unknown and unauthorized cloud assets are in ephemeral IP space, making it even harder for organizations to get a holistic view of their cloud footprint. Multi-tenancy exacerbates the issue since assets from more than one company can exist on the same IP. To fully solve the problem, organizations must take a discovery-first, whole-of-Internet approach to cloud security.”]
Source: https://www.darkreading.com/cloud/discovering-cloud-unknown-unknowns

