WP Login Delay is a plugin that adds a one second delay when logging into the system in order to slow down any brute-force attack on your website.
WordPress is one of the most used CMS on the internet, and because of this, one of the most targeted systems by bots and hackers.
A brute-force attack consists of systematically checking all possible keys or passwords until the correct one is found. WP Login Delay is a small plugin that offers a simple help against this. For each login attempt on the system, the plugin will add a delay of one second. Although the users will not feel any difference when logging into the system, this can help again a bot that is sending thousands of requests and waits for their results.
This plugin will not make your system highly secure, there are other security plugins that do the job better than WP Login Delay. But installing this plugin will add one more defense to your website, and this defense should not conflict with any other defense already installed.