Fair Log-in Standard Edition for Jooma! 2.5
For personal, one-man business and non-profit websites only. Limited support.
Current version: 1.1.0
Purchase includes one (1) year free updates.

A log-in gate keeper plug-in.

This plug-in progressively delays log-in attempts to both the front- and back-end of your website. The progression speed can be configured.
Automated brute force log-in attempts are made increasingly inefficient and are eventually given up.

The Business Edition of the plug-in includes the option to block and log offending IP addresses for a configurable length of time.

You can use our free Fair Log-in Monitor module alongside this plug-in, as a diagnostic tool that displays the number of back- and front-end log-in attempts that are currently being made. The Monitor can be downloaded free of charge and can help you decide what level of protection your website requires.

Install or upgrade the plug-in via Joomla! back-end.
Configuration overview: see here.

Requirements: Joomla! 2.5.27 or later with PHP 5.3 or later

Basic install, upgrade and setup instructions are in the documentation that comes with the download package.

Language: English.

License: Full business license. License terms are here.
Support: Limited support. Support terms are here.

Discount and refund policy: see here.

You may want to try the freeware edition first. The freeware edition does not expire, but has limited options and is meant for evaluation only.