While configuring workstations in a busy reception area, you notice that the customer-facing monitor regularly displays personally identifiable information (PII). Which of the following controls would BEST reduce the risk that a passerby could obtain that data through shoulder surfing?
Enable full-disk encryption on the workstation hard drive.
Replace the monitor with a higher-resolution model.
Install a privacy screen filter on the monitor.
Disable SSID broadcast on the office wireless network.
Installing a privacy screen filter narrows the viewing angle so that on-screen data is visible only to someone directly in front of the monitor, greatly reducing the chance that an unauthorized person in the public area can read the information. Full-disk encryption protects data at rest but does not stop real-time visual disclosure, a higher-resolution monitor does nothing to hide the screen's contents, and disabling SSID broadcast only affects wireless discovery-not visual observation.
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What is a privacy screen filter, and how does it work?
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What is shoulder surfing, and why is it a threat?
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Why wouldn’t full-disk encryption or disabling SSID broadcast help with shoulder surfing?