Most of what you do online is quietly logged, analyzed, and resold, even when it feels routine, like checking email or streaming a show. A virtual private network, or VPN, is one of the few tools that ...

You must have heard of "VPN". You might even be using one right now and want to brag about how it keeps your network "secure" as if you knew better. So, what is a VPN exactly? Is it all that good? If ...

Mike De Socio is a CNET contributor who writes about energy, personal finance, electric vehicles and climate change. He's also the author of the nonfiction book, "Morally Straight: How the Fight for ...