"Site Ppotect" - This is a small but powerful plugin to protect the content of your Joomla site from unauthorized access. The plug-in protects both the content intended for users / front-ent / and access to the admin settings / back-end /. The protection requires the user to enter a password to see the content that is found on the site.
With this plugin you can restrict access for users who are young.
How to achieve this effect:
1. Disable the requirement to have a username.
2. Set a password that is the answer to a math problem - for example, 20
3. In the "Title of Login form" field you can specify: How much is 5 + 15 ?
This plugin does not change the standard registration, logins and site access features. It just creates new ones that you can use at your discretion.
This extension is extremely easy to install and use. Does not require any special programming knowledge to make your site secure or only available to select users.
The plugin is a compatibility with: Joomla 3.0 and Joomla 4.0.