Allow me to shoot a scare tactics your way since scare tactics appear to be what drives some people to take secure your wordpress site a bit more seriously, or at the very least start thinking about the issue.
Truth is, if your own site is targeted by a master of the script, there is really no way. Everything you are about to read below are some measures you can take to minimize the risk to an acceptable degree. If your WordPress site is well protected odds are a hacker would prefer picking check out here easier victim, another.
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 of the information you will need to enter.
You can even get an SSL Encyption Security to your WordPress blogs. The SSL Security makes secure and encrypted communications with your site. So that all transactions are listed, you can keep the all the cookies and history of communication. Make sure all your sites check get SSL security for protection look at more info from hackers.
Of course you can set up plugins to make your store more user-friendly like share buttons or automatic plugin. That's all. Your shop is now up and running!