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| Why passwordless? |
Signing in without a password seems almost nonsensical, yet it can be more secure than traditional sign-ins.
Passwordless sign-in with only an email address is almost a backhanded approach to two-factor authentication. By proving you have access to that email account — by clicking a link emailed to you — you’ve authenticated securely and need nothing else. The site using this technique is relying on your maintaining the security of your email account appropriately.
Links:
- https://aka.ms/gopasswordless
- Is Passwordless Sign-in Safe?