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Firewall is the generic name for a piece of software or a hardware device which provides technical protection between your network devices and the Internet, referred to in the question set as boundary firewalls. Your organisation will have physical, virtual or software firewalls at your internet boundaries. Software firewalls are included within all major operating systems for laptops, desktops and servers and need to be configured to meet compliance. Firewalls are powerful devices, which need to be configured correctly to provide effective security.