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These devices not only allow multiple computers to be connected to a single internet connection, but they act as a type of firewall, protecting against malicious traffic from the internet.

There are also dedicated hardware appliances that act only as firewalls, and there is software that can be installed on PCs to act as a firewall as well.

It’s the same as Windows Defender, except it’s not pre-installed.

Conceptually, servers on the internet, or in “the cloud“, are viewed as being “up there” somewhere.Spybot Search and Destroy is one of the longest running and highly regarded anti-spyware tools out there.Like Malwarebytes, it has also expanded to be a more fully-featured anti-malware tool.Exactly how a virus does this depends on its type, but can include propagation over removable media such as USB drives, networks, or network-based activities such as user downloads.A firewall is a barrier between something that is potentially dangerous and something you want to keep safe. There is a wall of metal behind your car’s dashboard designed to keep the passengers safe should the engine catch on fire. In computing, a firewall is typically a networking device – often a router – that is designed to understand network traffic to some degree.

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