CakeDC/Users gives you TOTP two-factor authentication almost for free: flip one config key and every login grows a "enter your 6-digit code" step. The catch is that word every . The built-in flow is all-or-nothing — turn it on and all your users are forced through the OTP challenge on their nex...
Source: [Dev.to](https://dev.to/viniciusbig/per-user-two-factor-auth-in-cakephp-with-cakedcusers-opt-in-one-method-4n6d)