You can't avoid it "at all costs". You're going to have to delineate your acceptable risks, conversely your threat model. That's a game-like activity played by

You can't avoid it "at all costs". You're going to have to delineate your acceptable risks, conversely your threat model. That's a game-like activity played by your business analyst (you) and your security analyst (possibly also you). Here's the security analyst's next move: Wikipedia "DNS root zone" reminds us that "The US Department of Commerce NTIA exercises the ultimate authority over the DNS root zone of the Internet." And all electronic computer equipment is in the economic sphere that includes as a huge part the U.S. Your move, business analyst.