Grendel Scan version 1.0, a Web application testing tools, was introduced at the Defcon Security Conference in Las Vegas.

Mozilla has just released version 3.0.1 of the Firefox browser; the first maintenance update removes a couple of vulnerabilities and fixes a some minor bugs.

The latest trend is to hide spam in images. The admin’s response: an OCR tool that extracts the texts and feeds them to the spam filter.

A tarpit slows down spam by reducing the effectiveness of the spammer’s weapons.

Spam filters can help smooth the waves in your inbox, as long as they are reliable and don’t have too many side effects. We’ll show you what we found when we tested five antispam appliances and two service providers.

For many admins, the security of a web application is more important than its performance. If you have a web server with multiple users, the Suexec module can help you avoid problems associated with globally writable directories.

Firefox has a reputation of being the most innovative Web browser. We show you how to apply Firefox’s distribution-specific tools to make browsing the web safer for your children.

Version 3.0.0 of HTML Purifier, a PHP library for purifying HTML has just been released with numerous new features.