Here is yet another great plugin that will help you stay ahead of those pesky hackers. It is called The Semisecure Login Reimagined plugin. What it does is helps to ensures that your login credentials are not sent over the internet in easy to read plain text. What it actually does is uses public and secret-key encryption to encrypt passwords when logging in.
Update: Unfortunately, this plugin is no longer in developement. However there are some great alternatives to this plugin that can help you keep your login encrypted. Check out https://wordpress.org/plugins/chap-secure-login/