Linux is the safer OS you can use today: specific Linux viruses are few and malware is rare but with the increasing of users some threads are becoming real. For this reason, I strongly believe that nowadays a simple firewall is not enough we all need also a good antivirus. Today, in our Linux Page we’ve posted a short manual where we explain how to install a firewall (Firestarter), an antivirus (Avast) and a P2P stealth (Peer Guardian). We have tested all this software on a Ubuntu 7.04 without relevant problems; the combined use of this triplet is strongly recommended for people who desire to preserve their data and privacy.
Security package for Ubuntu: antivirus, firewall and P2P stealth