If you do not have good protection on your site, files can easily get lost. Some of those files may be saved on your computer and easily replaceable, but what about the rest of them? If you lose the first time to them, where will you get them out imp source of again? For sites which have been in business for quite a very long time, fix wordpress malware fix is vital. Long-term sites have made a high number of files and have a good deal of data. Recreating that all are a nightmare, and not something any business owner would like to do.
This is fantastic news as it means that there's a strong community of users and developers who could further improve the platform. Whenever there is a big group there will always be people who will try to take them down.
You need to create a new 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.
Note that moved here you should try this step for setups. If you might like to do it you have to change all the table names inside the database.
Do your homework and some hunting, but if you are pressed for time and want to get this try the WordPress security plugin that I use. It's a relief to know that my site (and company!) are secure.