CAPTCHA can be required to log in to a customer account, or be configured to appear after
several unsuccessful attempts.. It can also be used for other forms in the storefront.
To configure CAPTCHA for customers:
1. On the Admin menu, select System > Configuration. Then in the panel on the left under
Customers, select Customer Configuration.
2. Set Current Configuration Scope to the website where you want the configuration to apply.
3. Click to expand the CAPTCHA section, and complete the fields as described below.
4. When complete, click the Save Config button.