Symantec?s Norton Personal Firewall 2004 keeps hackers out and personal data in. Malicious Internet users are constantly looking for new ways to take control of your PC or steal your private information. Norton Personal Firewall works on multiple levels to defend against those threats. Right out of the box, this award-winning software hides your PC on the Internet so hackers can?t see it. If an attack is launched, Norton Intrusion Detection automatically blocks it. New Web controls provide fast access to ad blocking and other program options from Microsoft Internet Explorer. Another new feature, Network Detector, allows you to set up different firewall rules for different wired and wireless networks, then automatically switches to the appropriate settings when you move your laptop from network to network. Norton Personal Firewall also controls what goes out of your computer. Norton? Privacy Control prevents confidential information from being sent out in email, instant messages, or Microsoft® Office attachments without your knowledge. And Program Control lets you decide which applications can connect to the Internet, preventing spyware programs and Trojan horses from secretly transmitting data. To guard against emerging threats, Symantec?s exclusive LiveUpdate technology automatically downloads new protection updates via the Internet. Small Office Packs for 5 or 10 users are also available.