Don't let your internet traffic leak if your VPN drops—a kill switch locks it down. Because it's often disabled by default, I'll walk you through how to activate it.

A kill switch ensures your internet traffic never leaks outside the encrypted VPN tunnel, even during outages. It's easy to miss, so I'm here to show you how to turn it on.

Do fast-moving objects on your TV look blurry? Here are four technologies and picture settings that try to fix it.