I back up my blogs regularly using a plugin WP DB Backup. I can restore my website if anything happens. I use WP Security Scan plugin to scan my blog frequently and requests that are suspicious-looking to be blocked by WordPress Firewall to rename your login url to secure your wordpress website.
I might find it somewhat harder to crack your password if you're among the proactive ones. But if you're among those reactive ones, I might get you.
You also need to set the"Anyone Can Register" in Settings/General to away, and you ought to have some type of spam plugin. Akismet is the old standby, click here for info the one I use, but there are lots of them nowadays.
BACK UP your website and keep a copy on your own computer and storage. For those who have a very active website, back. You spend a whole lot of money and time on your website, don't skip this! The one solution that does it all is BackupBuddy, no other plug-ins back up plugins, widgets, your files and database. Need to move your site to another server, this will do it in under a few minutes!
There are always going to be risks being online (or even just being alive!) Also it's easy to get caught up in the fear. We put the breaks on, As soon as we get caught up in the fear. This isn't a response that is good. Take some common sense precautions forge ahead. It will have to be addressed then, if something does happen and no amount of quaking in your boots his explanation before-hand will have helped. If nothing does, all is good and you have not made yourself ill with worry.