If you do not have good protection on your website Documents can easily get lost. Some of those files might 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 of again? Especially fix hacked wordpress database is very important. Often, long-term sites have made a high number of documents and have a lot of data. Recreating that all would be a nightmare, and not something any business owner wants to do.
There are ways to pull off this, and many involve re-establishing databases and much more and FTPing files, exporting and copying. Some of these are very complicated, so it is important that you go for the one that is best. Then you might want to look into using a plugin for WordPress backups, if you these details are not of the persuasion.
This is quite handy plugin, protecting you against brute-force password-crack attacks. It keeps track of the IP address of every login attempt. You can configure the plugin to disable login attempts when a certain number of failed attempts is reached.
Another step to take to make WordPress more secure is to always upgrade WordPress. The reason behind this is that there also come fixes for security holes that are old which makes it essential to upgrade.
There is another problem you have with WordPress. People know where they can login and additionally they could just visit your login form and try a different combination of user accounts and passwords out. In order to stop this from happening you need to install Login Lockdown. It's a plugin that allows users to try and login with a password three times. Following that the IP address will be banned from the server for a certain amount of time.