During the redesign of an open-plan trading floor, a multinational investment bank notices that proprietary market data shown on large LCD monitors can be seen by anyone walking past the desks. Senior management wants to protect the information from casual observation while still preserving the face-to-face collaboration that makes the floor effective. Which physical security control best meets both confidentiality and collaboration requirements?
Install badge-activated turnstiles at trading-floor entrances
Implement automated window blinds that close during trading hours
Install anti-glare filters with viewing-angle restrictions on monitors
Anti-glare filters with viewing-angle restrictions use micro-louver technology that limits the screen's visible area to viewers directly in front of it, while darkening the image for side observers. This prevents visual data leakage without adding physical barriers between traders, so collaboration remains unhindered. Enclosed offices would isolate traders and impede rapid interaction, badge-activated turnstiles guard entry but not internal screen viewing, and automated window blinds mitigate only external eavesdropping, not shoulder-surfing on the floor.
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ISC2 CISSP
Security Architecture and Engineering
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