"If we are going to call Nmap the 'Network Mapper', it should at least be able to draw you a map of the network! " writes developer Fyodor in announcing the newest version 4.75 of the Nmap security scanner.

Free blog software WordPress notifies of a security update in its 2.6.2 version.

Wietse Venema, the developer of Postfix, points in an advisory to a security problem in connection with the Linux and Solaris filesystems. As more recent versions of these operating systems no longer comply with the POSIX standard for links, local attackers may be able to attach files to other users' Postfix mailboxes.

Automate the forensics process with the Dutch police department's Open Computer Forensics Architecture.

Find out what we can learn from the Debian OpenSSL disaster.

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.

Argus helps you monitor the flow of data on your network, detect trends, discover worms and viruses, and analyze bandwidth usage.

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