Many people have to grasp how important it is for your WordPress security which you create copies of your website regularly. This can and often does help WordPress website owners avoid the pain of having your website disappear, with no viable copy or backup. Let's look at a few ways to avoid this doomsday scenario!
Backing up your blog regularly also helps in procuring from clean hacked wordpress site hackers. You must keep a copy of your files hide away in backup system so that you can be confident of your database. This makes you a protected backup files that serves you in times of unexpected down is the machine. Hackers are less likely to steal from a bonded back up system.
The more powerful approach, and the one I recommend, is to use one of the password creation and storage plugins available for your browser. Lots of people like RoboForm, but I believe after a free trial period, you need to pay for it. I use the free version of Lastpass, and I recommend it for those of you who use Internet Explorer or Firefox. That will generate secure passwords for you; you use one master password to log in.
You need to create a user, before you can delete the default admin account. To do this go to your WordPress Dashboard and click on User -> Create New User. Then enter all the information you need to enter.
Now we're getting into matters specific to WordPress. Whenever you install WordPress, you need to edit the document config-sample.php and rename it to config.php. You need to install the database information there.
Don't use wp_ as a prefix for your own databases. That default is being eliminated by most web hosting providers now but if yours doesn't, adjust wp_ to check these guys out anything else but that.