How To Find The Wordpress Version Of A Website/Blog

When ever a hacker tries to attack a CMS(Content managing system) the first thing which he usually does is that he tries to find out the version number of that CMS, So he could go and search on Exploit databases for possible exploits, In a wordpress blog by default you can easily find out some one's version number by just viewing the source of that particular blog. Now it's not a good idea to