Apple: Please STOP my Mac treating Daventry as a potentially malicious area in the world

RE: "Despite me ticking the "Always Trust" box for next time, without fail my Mac ignores it and I'm forced to enter a six-figure code."

By any chance, is your Web browser set to block cookies, or to delete them when you exit the browser? Maybe you are blocking the storage of something that Apple's Web sites need to be able to identify your browser as "one that has been seen before."

If you are blocking cookies, you might try making an exception to allow them on "apple.com", or at the very least, on "discussions.apple.com".

Two-factor authentication for Apple ID - Apple Support

I suspect the reason that it is showing you a map of Daventry is that that is where it believes YOU are located. The idea is to help you decide whether to trust the login (enter the two-factor code). If you just tried to log in, and you see a map of your area, you would tend to trust it. If a map popped up showing some scammer call center in India, you might go "What the ?!?!" and that might put you on alert enough to refuse to authorize the login.

But as far as knowing where you are - the system is making a guess. Sometimes it has enough information that it can guess very accurately, other times not. And maybe, just maybe, it's coming up with Daventry because it's basing its guess on some information that it has about your Internet Service Provider (ISP).

As far as turning off two-factor authentication (if you can), that's a separate matter that would be in some preference somewhere.

Sounds like you’re being prompted for 2 factor authentication on your Apple ID for the browser you’re using. Shouldn’t have anything to do with where you live.

if they used the location from your profile, that wouldn’t serve any purpose. Then it would always show that location even if the person who was logging in was a computer criminal in another country.

From the support document:

"If you're already using two-factor authentication with your Apple ID, you can't turn it off. If you updated to two-factor authentication inadvertently, you can turn it off within two weeks of enrollment. If you do, your account is less secure and you can't use features that require a higher level of security."

BTW, it's not Daventry that they are treating as "potentially malicious", but any AppleID login from an untrusted device.