Captcha is mainly used for security purpose it assures that the user is only human, not computer or bots because humans are only capable of resolving captcha.
What is Logical Captcha?
CAPTCHA ( Completely Automated Public Turing test to Tell Computers and Humans Apart ) is a technique that differentiates between humans and computers or bots.
Logical Captcha asks some logical or mathematical questions instead of distorted images or audios which protects from false Login Attempts.
In Captcha Bank, these logical questions are based on simple mathematical operations like Arithmetic, Relational and Arrange Order. These questions are easy to answer for human but difficult to answer for the computer or bots.
Steps to Generate Logical Captcha with Captcha Bank?
In Captcha Bank, if you want to generate Logical Captcha follow the below steps:
In Captcha Bank scroll to Wizard menu and choose the Captcha Type as Logical Captcha.
Click on Next Step Button to proceed to Captcha Setting Wizard.
In Captcha Setting wizard, Choose any of the Mathematical Operation from the dropdown list. You can choose any operation according to your choice.
1) In Arithmetic option, four type of Arithmetic actions available: Addition, Subtraction, Multiplication, and Division. You tick all checkboxes either one or more than one.
2) In Relational option, two type of Relational actions available: Largest Number and Smallest Number.
3) In Arrange Order option, two type of Arrange Order actions available: Ascending Order and Descending Order.
After Captcha Setting, click on Next Step button to proceed to Choose Form wizard.
There are the list of form is available on which you want to display captcha. Choose the Forms according to your requirement.
The default WordPress Forms are enabled by default whereas all the third party plugins need to be activated for applying captcha.
After choosing the form click on the Next Step button to proceed to Confirm the wizard.
In Confirm wizard you can see the Captcha Live Preview. After that click on Save Changes button.