There are only three ways to think about security and authentication: You can rely on something you something you "know" - eg A Password Something you "have" e.g A Photo ID Something you "are". e.g Biometrics. They get more secure as you move from Know to Are. I've no idea why the world is so slow to accept that in the age of fingerprint scans, FaceID, all systems, from boarding a plane, to voting, should focus on the latter. The very least secure way for me to get things is via mail, and yet thats the way the most vital documents I get are received. This is not a comment on the USPS scandal, but I'm also amazed in 2020 there are so few efforts to digitalize democracy …see more