Ask HN: Why do many websites use a sign-in code instead of a password?
By bariumbitmap · 2026-09-04 · 5 points · 2 comments
I've noticed several websites that exclusively a single-use login code for authentication. This is a 4-digit or 6-digit login code sent via email instead of a password, it's not 2FA or a passkey. (I would rather they don't do this as it means I have to open my email instead of u…
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