title: How to implement captcha on joomla administrator panel?
body: <p>i need help on topic. I am using Joomla 2.5 for some security reason i need catcha on joomla administrator login panel. How i can implement it? Is there any extension available for it. i have tried it but Joomla session is created after the login of account. So it can not pass the value at time of login. Please help with possible solution</p>