For security reason we should change the admin path from the very obvious admin to something else. Like for example it can be backend or back or even abracadabra. Whatever you think will be secure can be set as admin path by the following steps –
1. Open file \app\etc\local.xml
2. Look for the line
3. Change admin to the name you have chosen. Save and close the file
4. Delete the contents of \var\cache and \var\session
Now you can access the admin with the new path like www.yousite.com/index.php/back/ or www.yousite.com/back/
Enjoy the added security 🙂