The moats and castle approach is an antiquated, yet common way of protecting the enterprise network. Download this blog post to learn a new way to protect the enterprise that hides applications: From the Internet, outside of the firewall with zero open ports and a minimal attack surface, we would like to share your data with the content creator. In this post, we will use this data to help us understand how to protect our enterprise network from the Internet. In the future, we may use this information to protect ourselves and our networks from the internet.”]
Source: https://www.bankinfosecurity.com/whitepapers/moats-castles-belong-in-past-w-4415