Final answer:
A privacy screen attached to Ann's monitor helps prevent shoulder surfing by restricting the viewing angles so that only the person in front of the screen can see the content, protecting sensitive information from unauthorized viewers.
Step-by-step explanation:
Ann, a user who works with many patients during the day, has a privacy screen attached to her monitor to help prevent shoulder surfing. Shoulder surfing is an act where someone looks over another person's shoulder to glean confidential information from their screen. This is particularly important in environments where sensitive information, such as patient data in healthcare settings, is displayed on screens that might be visible to unauthorized individuals. Privacy screens help in reducing the viewing angles, so only the person directly in front of the monitor can see the content clearly, thus, protecting patient confidentiality and helping in compliance with privacy regulations.