I have seen many WordPress webmasters that love to display the WP version of their install proudly in front of the world. That could be a major security issue for their sites especially if they are using older WP codes. Why make hackers job easier by showing them which known security holes they can take advantage of. Replace WP-Version is a simple plugin that replace your WP Version with a random string if you are running WP 2.4 or lower. For those of you running a more recent WP code, this plugin will remove the version information.
If you need a more complex security tool for WordPress, BulletProof Security is worth checking out. It can protect your website from XSS, CSRF, Base64_encode and SQL Injection hacking attempts. It also checks to see whether you are taking the right steps to keep your site protected against hackers.
Removing your WP version is very simple to do and can make a difference. Why help hackers get through your defenses easier when you can address this issue so easily.