Is there anything I can do to tighten up security on Joomla admin area?
You can secure your admin url by adding a key and value as GET variables.
For instance: http://mydomain.com/administrator?xY90w5=UrkZ9eqTy
This is essentially adding another layer of username and password combination.
You'll need the JLSecure My Site plugin , and you might then want to bookmark your admin url,
Otherwise you'll need to memorize and constantly retype the secret strings.
For developer/expert ways to secure your Joomla! admin url;
- read 3 Joomla Admin Url Tweaks