If you have a WordPress blog or website, WordPress security must be an issue for you. I'm sure you must have heard about hackers attacking blogs and websites of other people. The damage done by them can be enormous, especially when the particular blog was high page ranked, displaying high in search engines and profitable. It is not the only type of websites attacked by hackers. The reasoning behind their acts can't be explained as logical. They will destroy it for fun. I know stories of people who one day, instead of their website saw a short note informing them that their website has been blocked by Google due to the thread it carries to other internet users. It was a result of hacker attack, who made changes to see this here the website.
Cloning your site is just another degree in fix wordpress malware scanner which may be useful. Cloning simply means that you've backed up your site to a completely different place, (offline, as in a folder, in order to not have SEO problems) where you can access it at a moment's notice if the need arises.
Strong passwords - Do your best to use a password, alpha-numeric. Easy to remember passwords are also easy to guess!
You first need to create a new 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 of the information you will need to enter.
Another step to take to make WordPress secure is to always upgrade WordPress. The reason behind this is that with every new update there come fixes for older security holes making it essential to update.
Do not use wp_ as a prefix for your databases. That default is being eliminated by most web hosting providers but if Web Site yours does not, adjust wp_ to anything else but that.