I have had two WordPress blogs hacked into in the past. That was at a time when I was doing very little internet marketing, and until I found time to address the situation (months later), these sites were penalised in the search engines. They were not removed, but the rankings were reduced.
If you don't have good protection on your website, Documents can easily get lost. A few of those files might be stored in your computer and easily replaceable, but what about the rest of them? If you lose them the first time, where will you get them from again? For sites that have been in operation for a long time, fix wordpress malware removal is vital. Many times, long-term sites have made a high number of files and have a good deal of data. Recreating all 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 visit this page have the responsibility lie with you, rather than out.
Keep your WordPress Installation up to date - One of the simplest and most valuable tasks you can do yourself is to ensure that your WordPress installation is updated. WordPress provides a notice on your dashboard to you, so there's really no reason.
Upgrade if you aren't running the latest version of WordPress. Like maintaining your door unlocked when you leave for vacation leaving your site is.
Do not use wp_ as a prefix for your databases. That default is being eliminated by web hosting providers now but if yours doesn't, adjust wp_ to anything else but that.