需求
“Login with two-factor authentication: check the credentials and show an error on a wrong one; if 2FA is enabled, ask for a code and retry on a wrong code, then log the user in.”
接著試試Lock the account after three failed codesAdd a remember-this-device option
這張圖裡有什麼
看懂背後的決策。
01
Should 2FA be enabled?
02
Is the credential valid?
03
Is the 2FA code correct?
This flowchart can be reused for documenting or explaining any login process that includes an optional second factor.