Internet users typically reveal their IP addresses, and this lets companies compile a profile of your Internet activities. Tor and Privoxy can help protect your privacy.

After penetrating a remote system, intruders might think they are home and dry, but AppArmor spoils the fun, locking the miscreants in a virtual cage.

How does the popular Nmap scanner identify holes in network security? In this article, we examine some Nmap analysis techniques.

Some people don’t mind leaving traces of their IP address wherever they go, others prefer to use a tool like The Onion Router.

Many Websites log IP addresses and access times to identify users. If you don’t want to wind up as data in someone’s market research, the Java Anonymous Proxy will keep your surfing secret.

A proxy server provides safer and more efficient surfing. Although commercial proxy solutions are available, all you really need is Linux and an old PC in the attic.

A new form of phishing attack deposits an HTML tag on the vulnerable service to trap users into authenticating.