Changes

If you enter the wrong email and password into the login page twice you will see a CAPTCHA. CAPTCHA stands for "Completely Automated Public Turing Test to tell Computers and Humans Apart”. It is used in this case to verify that the user is a person and not an automated program is attempting to login.

You can choose Google reCAPTCHA or alternate CAPTCHA or specify alternate CAPTCHA only for users in countries that are unable to communicate with CAPTCHA servers because of government policy. This is done by selecting a country such as China in the '''Countries Using Alternate CAPTCHA Service:''' setting.