Removing Generated by Joomla
If you view source on a Joomla site, you'll see a tag that the site was generated by Joomla.
It is great to give kudos to the team's great effort, but sometimes you may wish to hide it.
If for example, an exploit exists, and an hacker is looking for Joomla sites, they'll find your site with that meta tag in it.
It is simple to remove the tag.
In Joomla 1.5.x you need to comment out some code in this file:
On or about link 84 you'll see:
$strHtml .= $tab.'<meta name="generator" content="'.$document->getGenerator().'" />'.$lnEnd;
Just comment it out.