Norton Personal Firewall.
Norton Personal Firewall from Symantec offers defense against
hackers and allows you to decide which applications can and cannot
access the Internet. There are rules created automatically whenever an
alert appears, and users can build their own rules. The program comes
with a set of defaults for blocking Trojan horse applications and
automatically integrates with Norton AntiVirus 2001. A comprehensive
event log provides detailed information about intrusion
attempts--including the IP addresses of potential attackers. A slider bar sets the program's security level to high, medium, or low.
Additional privacy features can be set to block access to confidential
information such as bank account or credit card numbers, and the program
can provide anonymous surfing and block cookies on a per-site basis.