The Sitefinity CMS Login widget gives users the option to retrieve their forgotten password. To minimize the risk of malicious abuse, you can extend the Login widget functionality to include a RadCaptcha field. To do this, you need to create a custom Web User Control in Visual Studio where to implement the RadCaptcha field functionality and logic. Then, you map the widget in the backend, so that Sitefinity CMS redirects to your custom Login widget instead of the regular one.
For more information about RadCaptcha, see:
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