Ultimately, secure your wordpress website will inform you that there's no htaccess within the directory. You can place a.htaccess record into this directory if you would like, and you can use it to handle the wp-admin directory from Ip Address address or address range. Details of how you can do this are plentiful around the net.
Truth is, if your own website is targeted by a capable master of the script, there is actually no way. What you are about to read below are a few actions you can take to quickly minimize the threat to an acceptable degree. Odds are a hacker would prefer choosing simpler victim, another if your WordPress site is well protected.
You first need to create a user with administrator rights before you can delete the default admin account. To do this go to your WordPress Dashboard and click on User -> Create New User. Enter all the information you will need to enter.
Another step to take to make WordPress secure is to always upgrade WordPress. The reason for you can try these out this is that there come fixes for security holes which makes it essential to update early.
Do not use wp_. That default is being eliminated by web hosting providers now but if yours doesn't, fix wp_ to anything else but that.