CHRISTIAN DARKIN / SCIENCE PHOTO LIBRARY CHRISTIAN DARKIN / SCIENCE PHOTO LIBRARY
Firewall. Conceptual computer artwork of a computer under a missile attack protected by a 'firewall' shield. This could be used to represent attacks on a computer system or network such as those from spyware, browser hijackers, viruses, trojans, worms and many other system breaches. A firewall is either a piece of hardware or software able to detect and prevent such attacks entering the computer system.
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