DNS is the center of the modern attack surface - are you protecting all levels?
If you are a mature organization, you might manage an external IP block of 65,000 IP addresses (equivalent to a /16 network). In contrast, very large organizations like Apple may handle an astonishing 16.7 million IP addresses or more (about a /8 network). However, this isn’t the case for many of us. IP addresses are fixed assets and can be costly, so most modern organizations do not have a large number of directly assigned IP addresses for every service they expose to the internet.