I use Homebrew constantly and have never seen such a thing in my life, in any version of macOS/OSX over the past several years. Not in building from source, not in casks.
Like another commenter the only security change I have is "Allow apps downloaded from" set to "App store and identified developers" -- which I'd assume virtually every Mac user on HN has also set.
Perhaps you have some kind of unusual configuration? Or there's some very specific subcategory of Homebrew packages that encounter this problem?
I am genuinely curious why people are singing that "I don't have that such problems in my computer!" slogan repeatedly? Some of us have that problem and just because we have the same OS and possible the same hardware didn't mean it is impossible. I wish people change that particular mindset and be aware that those problems does exist.
Obviously the problem is possible. It's happening to you. I'd like to find out why so that I can troubleshoot and fix the problem if it starts happening to me or my friends or coworkers. And really, I'd like to help you fix it, too, if I could figure out what's causing it.
Additionally if they can’t reproduce, they can’t offer any advice or help.
It’s highly unlikely that MacOS behaves specially for your existence.
M1/ARM code is treated more strictly than Intel, so I guess all my command line stuff is Intel.
Homebrew is a keg of worms, if you excuse the bad pun. Sadly (because it seems to be easier to get started?) many developers prefer it over Macports...
It is likely that it is not the devs prefers it over MacPorts, it is likely that end-users prefers it and the devs are following what the end-users desires. Homebrew have huge catalog of software and libraries than MacPorts.
