Requires CakePHP 3 Captcha Plugin
You can install this plugin into your CakePHP application using composer.
The recommended way to install composer packages is:
composer require inimist/captcha-demo
And
bin/cake plugin load CaptchaDemo -b -r
Create captcha_demo table using Migrations plugin:
bin/cake migrations migrate -p CaptchaDemo
After installation visit my_app_url/captcha-demo/