Shoulder surfing is a phenomenon where a person's shoulder is used to view the screen of the device they are using. This is a result of a design flaw in many devices, which makes it easier for someone who is nearby to view your screen. This is a problem that is becoming increasingly more common.

Super Snow is an experimental extension for Chrome that improves the privacy of web browsing by preventing shoulder surfing. By installing it, you can activate Super Snow anytime you want to protect yourself from people who are around you.