Joomla! 2.5 support ended December 31, 2014 (the latest official release is 2.5.28). Although this was more than 3 years ago, many sites have not yet migrated to Joomla! 3 (find reasons why you should migrate here).
Many of those sites use the Google reCaptcha v1 widget. Google will turn off reCAPTCHA v1 on March 31, 2018. Therefore, any call to the v1 API will not work after March 31, 2018 and forms will fail.
You have now 2 options:
- Update your site to Joomla 3 and use the core reCaptcha plugin which supports Google reCaptcha v1 and v2 (or download SimplifyYourWeb's own Custom reCaptcha plugin and add support to the new invisible reCaptcha!),
- Download and install a reCaptcha plugin for Joomla 2.5 that supports Google reCaptcha v2.
Whatever the reason(s) why you did not update your Joomla site (you have custom made extensions that require re-work for instance), you can't afford to get 'cornered' by Google's reCaptcha v1 end of life.
At SimplifyYourWeb, we recognize there may be cases where your only immediate option (time is running out!) is to install a new reCaptcha plugin for support of the Google's v2 API. This may save you some time until you migrate to Joomla 3 (or 4!).
That is why we created the Rescue Me reCaptcha plugin for Joomla 2.5.5 - 2.5.28. It will give you full support for Google reCaptcha v2.
You need to get new keys. Keys created for Google reCaptcha v1 are not valid anymore.
If you need help migrating to Joomla 3, contact us for a quote!