Is a free VPN safe? 5 things to look for

Virtual private networks are designed to preserve your anonymity on the internet. But VPNs can suffer from data breaches too, just like any service--as a recent report reminded us all. They also can be run by just about anyone, so it's wise to scrutinize your options before signing up. That's especially true when picking a free VPN. Free services aren't automatically bad, but internet connections, electricity, and servers cost money. To afford those, free VPNs may show you ads, sell your data, o...