You don't need expensive proprietary tools to practice the craft of computer forensics.

A forensics expert explains how to extract interesting details from a confiscated Windows hard disk using standard Linux tools.

Sometimes the best way to keep spam out of your mailbox is to keep the spammers from getting your address.

The BackTrack live distribution lets you act like an intruder to test your network’s security.

Netfilter’s Recent module builds a temporary blacklist to keep intruders off your network.

If you know your way around network protocols, you can get to the source of a problem quickly with Wireshark.

Protect your system and preserve your configuration with this powerful backup tool.

Is your address book open to the world? Is your mobile phone calling Russia? Many users don’t know how easy it is for an attacker to target Bluetooth.