If you do not have good protection on your website, files can easily get lost. Some 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 are you going to get them from again? Especially repair hacked wordpress site is very important. Long-term sites have made a large number of files and have a good deal of data. Recreating that all would be a nightmare, and not something any business owner would like to do.
No software system is resistant to vulnerabilities and bugs. Security holes will be found and guys will do their best to exploit them. Keeping your software up-to-date is a good way to stave off attacks, once security holes are found because their products will be fixed by reliable software sellers.
Move your wp-config.php file up one directory from the WordPress check that root. WordPress will look for it there if it cannot be found in the main directory. Additionally, nobody else will be able to read the document unless they have SSH or FTP access.
Make a note of your password! I suggest the paid or free version of the software that is secure *Roboform* to remember your passwords.
But realize that security is something you must start thinking about. Don't only be the type, consider action to start today, protecting yourself. Don't let Joe the Hacker make your life miserable and turn all that you've worked hard in creating come crashing down in a matter of seconds.