You can buy security plugins to your WordPress blog. There are many safety plugins out there that promises security for your blog. One is called fix wordpress malware removal Scan. This plugin continuously scans the system for enhancing the use this link safety. It also updates the safety that the system can not be penetrated by new hackers.
The one I recommend, and the approach, is to use one of the password creation and storage plugins available for your browser. I believe after a trial period, you have to pay for it, although Lots of people like RoboForm. I use the free version of Lastpass, and I recommend it for those of you who use Internet Explorer or Firefox. That will generate passwords for you; then you use one master password to log in.
For me it's a WordPress plugin. They're drop dead simple to set up, have all the functions you need for a task like this, and are relatively cheap, especially when compared to having to employ someone to have this done for you.
As I (our fictitious Joe the Hacker) understand, people have far too many usernames and passwords to remember. You have got Twitter, Facebook, your online banking, LinkedIn, two site logins, FTP, internet hosting, etc. accounts which all come with logins and passwords you need to remember.
Implementing all the above will take less than an hour to complete, while making your WordPress site much more immune to intrusions. Sites were cracked this past year, largely due to easily preventable security gaps. Have yourself prepared and you're likely to be on the safe side.