CeBIT 2010

Something old, something new, something borrowed, and something blue.

Microsoft has decided to issue a special patch outside its usual patchday rhythm for all its Internet Explorer versions to close a severe vulnerability issue. Downloads of Firefox have accordingly skyrocketed.

You need to think like an attacker to keep your network safe. We asked security columnist Kurt Seifried for an inside look at the art of intrusion.

Spot intruders with these easy security visualization tools.

A slow death for the default configuration.

Search out hidden attacks with the Snort intrusion detection system.

Once you determine a system has been attacked, boot to the BackTrack Live forensics distro and start your investigation with Sleuth Kit.

A former intrusion specialist is training a gathering of European law enforcement agents in how the bad guys work on the Internet. Contributing editor Markus Feilner stops in for a lesson in attack techniques.