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A firewall is a piece of software that monitors all incoming network traffic and allows in only the connections that are known and trusted. Port 80 is open so that you can browse web pages; port 1863 allows you to engage in instant messaging with friends; port 443 gives access to secure web pages used by online merchants to encrypt purchases.
You could manually grant or restrict access to each of the 65,535 ports available under the Internet Protocol. Every time you add a new program that requires Internet access, you would need to determine which port(s) it uses, and reconfigure your computer accordingly. You've likely got better ways to spend your time.
Firewall software takes on this burden for you, allowing access to the ports you need open, and closing off those you don't. It also makes your computer "invisible" on the Internet; if hackers can't find you, they will have a hard time attacking you.
More advanced firewall software also monitors outgoing traffic. This is crucial since malicious code spreads by accessing the Internet and pushing copies of itself to other computers (often those of your friends and family!). Outbound protection can keep even brand-new Trojan horses and spyware from doing their damaging work. The ultimate protection is program-level control, so that only those applications that you trust are allowed to access the Internet.
World-Class Protection Against Hackers
Any personal computer connected to the Internet is a potential target. Hackers randomly barrage Internet connected PCs with "pings" or "port scans", probing to find unprotected PCs. Once found, a hacker can compromise your PC with a dangerous Internet threat - Trojan horse, spyware or malicious worm.
ZoneAlarm Pro's TrueVector® technology combines a personal firewall with Program Control to protect your PC from intrusions and hostile attacks. ZoneAlarm Pro's firewall barricades your PC with immediate and complete port blocking. And, then runs in Stealth Mode to make your PC invisible on the Internet - if you can't be seen, you can't be attacked.
Unlike other personal firewalls, ZoneAlarm Pro includes Program Control to protect against known and unknown Internet threats. Program Control monitors all outbound traffic to prevent rogue programs from transferring your valuable data to a hacker. With ZoneAlarm Pro, you're in control with the ability to specify which programs, known or unknown, can be trusted to access the Internet.
With new Internet threats appearing daily, why risk it?.
What does the product cost?
Our pricing structure is based on a starting fee of just Lm 35.00 (VAT included). Please email us for more details.
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