Documents can easily get lost if you don't have good protection on your website. A few of those files may be stored 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 from again? Especially for sites that have been in business for a very long time, clean hacked wordpress site is very important. Many times, long-term sites have a lot of data and have made a high number of documents. Recreating that all would be a nightmare, and not something any business owner would like to do.
Also, don't make the mistake of thinking that your hosting company will have your back so far as WordPress copies go. Not always. It's been my experience that the company may or may not be doing backups while they say that they do. Why take that kind of chance?
Keeping your WordPress site up-to-date is one of the simplest things you can do. For the last few versions, WordPress has included the ability to set up automatic updates. Not only that, but sites are notified every time a new upgrade becomes available.
As I (our untrue Joe the Hacker) understand, people have way too many usernames and passwords to remember. You've got Twitter, important link Facebook, your online banking, LinkedIn, two site logins, FTP, internet hosting, etc. accounts that all include logins and passwords you will need to remember.
But realize that online security is something you really need to start thinking my latest blog post about. Do not only be the type, take action to begin protecting yourself today. Do not let Joe the Hacker make your life miserable and turn everything that you've worked so hard.