Privacy screen protectors sound like a smart idea, but there are drawbacks that many users only discover after buying one.

When you buy through our links, Business Insider may earn an affiliate commission. Learn more The iPhone Air is Apple's newest iPhone series, and at less than a quarter inch thick, it is the thinnest ...

A privacy screen is typically a plastic or glass layer on top of a phone, laptop or computer monitor that makes it harder for onlookers to see what is on your screen. The launch of the latest Samsung ...