If you do not have good protection on your site, files can easily get lost. Some of those files might be saved in your computer and easily replaceable, but what about the rest of them? Where are you going to get them out of again, if you lose the first time to them? Especially secure your wordpress website is very important. Often sites have made a high number of files and have a lot of data. Recreating all of that would be a nightmare, and not something any business owner wants to do.
Do not depend on your internet host - Many people rely on their web host to"do all that technical stuff for me", not realizing that sometimes, they do not! Far better to have the responsibility lie rather than out.
I don't think there's a person out there that after learning how much of a problem WordPress hacking is that it's a fantastic idea to boost the security of their blogs. Something I've noticed over the years is that when it comes to securing their blogs, bloggers seem to be stuck in this reactive state.
Note that this step for new installations should only try. You'll also need to change of the table names inside the database, if you might like to do it for existing installations.
Change admin username and informative post your WordPress password, or your password and collect and use fantastic WordPress security tips to keep hackers out!