Securing our site

So, what do the modules we installed do?

• reCAPTCHA — This module extends the CAPTCHA module and help prevent automated "web bots" from using and submitting forms, including registration forms, contact forms, and posting content.

• Mollom—This module comes into play in the unlikely event that an automated web bot is able to circumvent the CAPTCHA system. The mollom system checks whether the content submitted is SPAM. This can also prevent SPAM that is submitted by a genuine user, and can optionally fall back on a CAPTCHA system if it detects a SPAM posting.

• Legal module — This module adds a terms and conditions box to our sign up form, which users must read and accept before joining, informing them of the rules and policies of our site.

CAPTCHA

The Completely Automated Public Turing test to tell Computers and Humans Apart (CAPTCHA) module installs a test which proves you are human and prevents automated spam bots from signing up to our site.

The module allows us to set up one of three types of tests for use at various points throughout the site, including posting a comment, registering, and contacting a user. The three different tests, or challenges, available are:

Because we installed the reCAPTCHA module, we can also offer a reCAPTCHA-based test, which is seen as a large improvement over the Image test.

Let's have a look at an example for each of these different challenges.

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