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Firewall
Firewall protects resources of a private network from users from other networks, thus prevent unauthorized users from gaining access to a computer network. Firewall could also monitor transfers of information in & out of the network. A firewall is a combination of hardware and software that limits the exposure of a computer network.
Personal firewalls can greatly increase your protection, as well as from hacker's attack. Without a firewall, a personal computer connected to the Internet could be hijacked in a few minutes by automated hacker. Personal firewalls can be found at any online or offline computer software store.
Firewall
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Firewall
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