This is America. Your social security number will make a perfectly fine secret key! It works so well as a secret for everything else in your life, after all. I'm sure nobody else has has it, or can acquire it for use in mass voter fraud!
> Your social security number will make a perfectly fine secret key!
Never in its history was it a secret key anymore than your drivers license number, it’s an ID number that can be used to look you up in a DB like a username would be.
The problem is, that despite everyone just instinctively knowing a username needs to be paired with a password (or ideally multiple factors, but that isn’t as universal in understanding yet), no such thing exists currently to pair with your social security number.