Domain Pointing / Stealing Via DNS On DigitalOcean Side
I am just a bit confused as to how DNS works in terms of when it is assigned to DigitalOcean's nameservers.
My domain from Namecheap is pointed at NS1/2/3.DIGITALOCEAN.COM. and I added the domain under DNS in DO to point to the droplet IP. My question is, wouldn't someone else using DO be able to do the same thing and assign a domain in their own DNS panel and point the record to their own droplet IP?
AKA: how does DO know what domain should point to what account's DNS?