Here's Why You Should Put a Privacy Protector on Your Screen | HackerNoon
Briefly

Visual hacking, or shoulder surfing, allows onlookers to view private information on screens. Research shows its success rate is high at 91%. To combat this threat, using screen privacy protectors is recommended, especially when dealing with sensitive communications. These protectors effectively shield screens from prying eyes unless someone is positioned directly behind the user. They are affordable, easy to apply, and durable. Many reliable options can be found on tech news platforms and consumer advice websites.
Research sponsored by 3M found that visual hacking, or shoulder surfing, is successful 91% of the time, highlighting the need for screen privacy protectors.
Privacy protectors obscure the view of a screen unless someone is directly behind the user, making them essential for protecting sensitive information in public.
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