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| security system (1. A hardware system that prevents unauthorised intrusion into a premises, and reports such attempts 2. (computing) A similar software system that prevents unauthorised access. WT Alexander Demidov) | |||
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| security system (1. A hardware system that prevents unauthorised intrusion into a premises, and reports such attempts 2. (computing) A similar software system that prevents unauthorised access. WT Alexander Demidov) | |||